README
¶
Fiber Utils
A collection of common functions for Fiber with better performance, fewer allocations, and fewer dependencies.
Benchmarks
Per-commit benchmark charts: https://gofiber.github.io/utils/benchmarks/
Each table below starts with the go test command that produced it. Maintainers refresh the
numbers with make benchupdate, or by commenting /bench-readme (arm64) or
/bench-readme-amd64 on a pull request.
Environment: goos: darwin goarch: arm64 pkg: github.com/gofiber/utils/v2 cpu: Apple M2 Pro
// go test ./... -benchmem -run=^$ -bench=Benchmark_ -count=1
// (swar's Benchmark_Load8_Fusion, an advisory codegen guard, is deliberately omitted)
# Case Conversion
Benchmark_ToLowerBytes/empty/fiber-12 599341221 1.970 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/empty/fiber/unsafe-12 613673802 1.951 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/empty/default-12 363300402 3.316 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/http-get/fiber-12 350302147 3.434 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/http-get/fiber/unsafe-12 250488015 4.803 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/http-get/default-12 65883986 18.03 ns/op 8 B/op 1 allocs/op
Benchmark_ToLowerBytes/http-get-upper/fiber-12 95234625 12.53 ns/op 3 B/op 1 allocs/op
Benchmark_ToLowerBytes/http-get-upper/fiber/unsafe-12 242418936 4.802 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/http-get-upper/default-12 86405012 13.85 ns/op 8 B/op 1 allocs/op
Benchmark_ToLowerBytes/header-content-type-mixed/fiber-12 52263289 22.74 ns/op 48 B/op 1 allocs/op
Benchmark_ToLowerBytes/header-content-type-mixed/fiber/unsafe-12 131711175 9.101 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/header-content-type-mixed/default-12 25312339 47.13 ns/op 48 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-lower/fiber-12 120148472 10.02 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/large-lower/fiber/unsafe-12 100000000 10.57 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/large-lower/default-12 16746064 71.43 ns/op 64 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-upper/fiber-12 46270634 26.82 ns/op 64 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-upper/fiber/unsafe-12 100000000 10.71 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/large-upper/default-12 15734505 76.92 ns/op 64 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-mixed/fiber-12 46607823 26.06 ns/op 64 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-mixed/fiber/unsafe-12 100000000 10.86 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/large-mixed/default-12 16291084 73.76 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/empty/fiber-12 607678140 1.976 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/empty/fiber/unsafe-12 611928006 1.981 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/empty/default-12 362632894 3.309 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/http-get/fiber-12 95358867 12.55 ns/op 3 B/op 1 allocs/op
Benchmark_ToUpperBytes/http-get/fiber/unsafe-12 249490471 4.905 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/http-get/default-12 79248020 14.63 ns/op 8 B/op 1 allocs/op
Benchmark_ToUpperBytes/http-get-upper/fiber-12 365516280 3.330 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/http-get-upper/fiber/unsafe-12 249981619 4.803 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/http-get-upper/default-12 64343162 19.01 ns/op 8 B/op 1 allocs/op
Benchmark_ToUpperBytes/header-content-type-mixed/fiber-12 52506741 22.69 ns/op 48 B/op 1 allocs/op
Benchmark_ToUpperBytes/header-content-type-mixed/fiber/unsafe-12 130478352 9.350 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/header-content-type-mixed/default-12 22415607 54.44 ns/op 48 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-lower/fiber-12 44765679 26.92 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-lower/fiber/unsafe-12 100000000 13.68 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/large-lower/default-12 14464340 110.7 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-upper/fiber-12 100000000 11.98 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/large-upper/fiber/unsafe-12 83808488 13.94 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/large-upper/default-12 13142096 87.35 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-mixed/fiber-12 33038661 32.75 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-mixed/fiber/unsafe-12 100000000 10.93 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/large-mixed/default-12 15034422 98.27 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpper/empty/fiber-12 595298628 2.309 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/empty/fiber/unsafe-12 595273404 2.021 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/empty/default-12 636980288 1.883 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/http-get/fiber-12 97025577 12.40 ns/op 3 B/op 1 allocs/op
Benchmark_ToUpper/http-get/fiber/unsafe-12 244711635 4.857 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/http-get/default-12 59790234 19.54 ns/op 8 B/op 1 allocs/op
Benchmark_ToUpper/http-get-upper/fiber-12 383218539 3.056 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/http-get-upper/fiber/unsafe-12 247851331 4.864 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/http-get-upper/default-12 223044249 5.182 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/header-content-type-mixed/fiber-12 52628502 24.13 ns/op 48 B/op 1 allocs/op
Benchmark_ToUpper/header-content-type-mixed/fiber/unsafe-12 127726341 9.233 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/header-content-type-mixed/default-12 11549816 104.0 ns/op 48 B/op 1 allocs/op
Benchmark_ToUpper/large-lower/fiber-12 42409070 26.04 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpper/large-lower/fiber/unsafe-12 100000000 11.00 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-lower/default-12 7051911 169.0 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpper/large-upper/fiber-12 123837582 9.590 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-upper/fiber/unsafe-12 100000000 10.83 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-upper/default-12 19115356 61.51 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-mixed/fiber-12 45872143 27.77 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpper/large-mixed/fiber/unsafe-12 100000000 11.00 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-mixed/default-12 5927710 203.1 ns/op 64 B/op 1 allocs/op
Benchmark_ToLower/empty/fiber-12 613625554 1.952 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/empty/fiber/unsafe-12 572670608 1.989 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/empty/default-12 644769141 1.863 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get/fiber-12 395302272 3.034 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get/fiber/unsafe-12 252231990 4.813 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get/default-12 284202345 4.219 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get-upper/fiber-12 100000000 12.08 ns/op 3 B/op 1 allocs/op
Benchmark_ToLower/http-get-upper/fiber/unsafe-12 252859507 4.816 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get-upper/default-12 60415860 19.54 ns/op 8 B/op 1 allocs/op
Benchmark_ToLower/header-content-type-mixed/fiber-12 53446660 22.49 ns/op 48 B/op 1 allocs/op
Benchmark_ToLower/header-content-type-mixed/fiber/unsafe-12 131152108 9.153 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/header-content-type-mixed/default-12 18039788 66.79 ns/op 48 B/op 1 allocs/op
Benchmark_ToLower/large-lower/fiber-12 120227584 9.982 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-lower/fiber/unsafe-12 100000000 10.68 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-lower/default-12 24070928 48.79 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-upper/fiber-12 44699118 25.92 ns/op 64 B/op 1 allocs/op
Benchmark_ToLower/large-upper/fiber/unsafe-12 100000000 10.74 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-upper/default-12 7075200 170.0 ns/op 64 B/op 1 allocs/op
Benchmark_ToLower/large-mixed/fiber-12 46426453 26.01 ns/op 64 B/op 1 allocs/op
Benchmark_ToLower/large-mixed/fiber/unsafe-12 100000000 10.74 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-mixed/default-12 5682778 204.3 ns/op 64 B/op 1 allocs/op
# Add Trailing Slash
Benchmark_AddTrailingSlashBytes/empty-12 1000000000 0.5857 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashBytes/slash-only-12 1000000000 0.8694 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashBytes/short-no-slash-12 100000000 11.65 ns/op 4 B/op 1 allocs/op
Benchmark_AddTrailingSlashBytes/short-with-slash-12 1000000000 0.8867 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashBytes/path-no-slash-12 93543546 13.36 ns/op 16 B/op 1 allocs/op
Benchmark_AddTrailingSlashBytes/path-with-slash-12 1000000000 0.9011 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashString/empty-12 1000000000 0.2926 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashString/slash-only-12 1000000000 0.4482 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashString/short-no-slash-12 100000000 11.37 ns/op 4 B/op 1 allocs/op
Benchmark_AddTrailingSlashString/short-with-slash-12 1000000000 0.4502 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashString/path-no-slash-12 82427726 14.41 ns/op 16 B/op 1 allocs/op
Benchmark_AddTrailingSlashString/path-with-slash-12 1000000000 0.4529 ns/op 0 B/op 0 allocs/op
# EqualFold
Benchmark_EqualFoldBytes/fiber-12 67368261 18.48 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFoldBytes/default-12 17774803 65.91 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold/fiber-12 80501566 14.75 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold/default-12 18314365 65.96 ns/op 0 B/op 0 allocs/op
# Search
// amd64 note: IndexAny2/IndexAny3 dispatch to package simd for 32+ byte
// inputs; these arm64 rows keep the portable SWAR path. For amd64 numbers
// see the Benchmark_Memchr2/Benchmark_Memchr3 rows in the simd section
// below (the kernels these functions dispatch to).
Benchmark_IndexAny2/7B/swar-12 282163779 4.297 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/7B/scalar-12 314553402 3.826 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/7B/stdlib-indexany-12 50085909 23.97 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/8B/swar-12 522780714 2.289 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/8B/scalar-12 271494799 4.206 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/8B/stdlib-indexany-12 44831599 26.78 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/16B/swar-12 393245086 3.047 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/16B/scalar-12 168476984 7.117 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/16B/stdlib-indexany-12 100000000 10.03 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/32B/swar-12 252199587 4.802 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/32B/scalar-12 84105762 14.27 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/32B/stdlib-indexany-12 70291048 17.37 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/64B/swar-12 144335962 8.290 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/64B/scalar-12 42694686 28.60 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/64B/stdlib-indexany-12 37615540 32.23 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/512B/swar-12 20231538 59.71 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/512B/scalar-12 5071586 233.6 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/512B/stdlib-indexany-12 4448119 274.2 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/7B/swar-12 221889592 5.397 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/7B/scalar-12 240859849 4.977 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/8B/swar-12 445742876 2.689 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/8B/scalar-12 211981612 5.620 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/16B/swar-12 326475568 3.739 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/16B/scalar-12 100000000 10.31 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/32B/swar-12 196365920 6.112 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/32B/scalar-12 60021255 19.81 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/64B/swar-12 100000000 10.98 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/64B/scalar-12 31180405 38.97 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/512B/swar-12 15466316 79.22 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/512B/scalar-12 3911382 307.1 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-8B/swar-12 332497509 3.634 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-8B/scalar-12 491493494 2.408 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-32B/swar-12 149769112 7.928 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-32B/scalar-12 44041342 27.13 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/hit-32B/swar-12 138732252 8.758 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/hit-32B/scalar-12 33871633 30.73 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/hit-tail/swar-12 100000000 12.34 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/hit-tail/scalar-12 16138168 75.39 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-64B/swar-12 100000000 11.37 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-64B/scalar-12 17902330 67.78 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-512B/swar-12 17640939 67.65 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-512B/scalar-12 2211582 544.4 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/long-hit-64B/swar-12 100000000 11.58 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/long-hit-64B/scalar-12 23906326 51.33 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/long-miss-64B/swar-12 100000000 11.33 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/long-miss-64B/scalar-12 23553600 50.27 ns/op 0 B/op 0 allocs/op
# ASCII
// amd64 note: IsASCII dispatches to package simd for 32+ byte inputs;
// these arm64 rows keep the portable SWAR path. See the simd section
// below for amd64 numbers.
Benchmark_IsASCII/7B/swar-12 238699563 5.001 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/7B/scalar-12 292669958 4.064 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/8B/swar-12 439961722 2.687 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/8B/scalar-12 274732192 4.364 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/16B/swar-12 367179319 3.255 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/16B/scalar-12 179331987 6.706 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/32B/swar-12 368345228 3.271 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/32B/scalar-12 100000000 11.62 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/64B/swar-12 265505815 4.486 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/64B/scalar-12 57864440 21.33 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/512B/swar-12 47664915 25.14 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/512B/scalar-12 7081790 169.5 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/7B/swar-12 142234436 8.424 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/7B/scalar-12 142394628 8.174 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/8B/swar-12 401721262 3.099 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/8B/scalar-12 138047568 8.654 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/16B/swar-12 244592613 5.059 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/16B/scalar-12 75413396 15.94 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/32B/swar-12 138857455 8.875 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/32B/scalar-12 39539425 30.18 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/64B/swar-12 75193269 16.46 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/64B/scalar-12 20898807 57.81 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/512B/swar-12 9634008 124.9 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/512B/scalar-12 2619062 460.6 ns/op 0 B/op 0 allocs/op
# Trim
Benchmark_TrimRight/fiber-12 587360972 2.043 ns/op 0 B/op 0 allocs/op
Benchmark_TrimRight/default-12 417142952 2.887 ns/op 0 B/op 0 allocs/op
Benchmark_TrimRightBytes/fiber-12 590828253 2.067 ns/op 0 B/op 0 allocs/op
Benchmark_TrimRightBytes/default-12 374548395 3.236 ns/op 0 B/op 0 allocs/op
Benchmark_TrimLeft/fiber-12 590822072 2.030 ns/op 0 B/op 0 allocs/op
Benchmark_TrimLeft/default-12 408184784 2.967 ns/op 0 B/op 0 allocs/op
Benchmark_TrimLeftBytes/fiber-12 592875732 2.033 ns/op 0 B/op 0 allocs/op
Benchmark_TrimLeftBytes/default-12 405921434 2.967 ns/op 0 B/op 0 allocs/op
Benchmark_Trim/fiber-12 317625432 3.758 ns/op 0 B/op 0 allocs/op
Benchmark_Trim/default-12 250173384 4.735 ns/op 0 B/op 0 allocs/op
Benchmark_Trim/default.trimspace-12 241883282 5.022 ns/op 0 B/op 0 allocs/op
Benchmark_TrimBytes/fiber-12 308885211 3.858 ns/op 0 B/op 0 allocs/op
Benchmark_TrimBytes/default-12 254064188 4.802 ns/op 0 B/op 0 allocs/op
Benchmark_TrimBytes/default.trimspace-12 224231778 5.330 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/empty-12 1000000000 0.3017 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/empty-12 583064172 2.074 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/spaces-12 387354229 3.059 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/spaces-12 320059388 3.651 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/ascii-word-12 345078337 3.535 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/ascii-word-12 270603267 4.465 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/auth-header-bearer-12 291494109 4.141 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/auth-header-bearer-12 224087944 5.329 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/auth-header-basic-12 390765345 3.047 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/auth-header-basic-12 258943531 4.718 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/accept-encoding-12 344369745 3.490 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/accept-encoding-12 277203638 4.347 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/content-type-12 344263705 3.506 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/content-type-12 276213367 4.343 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/x-forwarded-for-12 460119685 2.653 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/x-forwarded-for-12 296468840 4.058 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/query-params-12 330053276 3.520 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/query-params-12 275688495 4.352 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/ascii-long-12 275511898 4.342 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/ascii-long-12 206143018 5.807 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/no-trim-12 1000000000 0.5914 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/no-trim-12 451842741 2.634 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/mixed-whitespace-12 296083767 4.054 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/mixed-whitespace-12 224007750 5.294 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/empty-12 1000000000 0.2914 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/empty-12 519488766 2.352 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/spaces-12 410959255 2.966 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/spaces-12 315602949 3.827 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/ascii-word-12 341217429 3.519 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/ascii-word-12 247799318 4.667 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/auth-header-bearer-12 295130076 4.182 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/auth-header-bearer-12 209162235 5.685 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/auth-header-basic-12 393366796 3.053 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/auth-header-basic-12 240882009 4.930 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/accept-encoding-12 343673244 3.512 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/accept-encoding-12 250962042 4.642 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/content-type-12 344382758 3.516 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/content-type-12 250622116 4.693 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/x-forwarded-for-12 459435145 2.621 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/x-forwarded-for-12 276595178 4.359 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/query-params-12 341144192 3.526 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/query-params-12 255843174 4.873 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/ascii-long-12 270183530 4.445 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/ascii-long-12 189740618 6.335 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/no-trim-12 1000000000 0.5969 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/no-trim-12 406072189 2.941 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/mixed-whitespace-12 289382116 4.057 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/mixed-whitespace-12 218559462 5.493 ns/op 0 B/op 0 allocs/op
# Convert
Benchmark_ConvertToBytes/fiber-12 320332576 3.787 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int-12 499429904 2.382 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int8-12 614406423 1.965 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int16-12 486644316 2.463 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int32-12 495227163 2.422 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int64-12 502362236 2.429 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint-12 561693333 2.101 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint8-12 611239028 1.965 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint16-12 573383422 2.127 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint32-12 575723191 2.093 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint64-12 575901750 2.089 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/string-12 613909396 1.959 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/[]uint8-12 96832432 12.11 ns/op 16 B/op 1 allocs/op
Benchmark_ToString/bool-12 608058547 1.990 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/float32-12 23195016 47.11 ns/op 4 B/op 1 allocs/op
Benchmark_ToString/float64-12 17204126 70.24 ns/op 4 B/op 1 allocs/op
Benchmark_ToString/time.Time-12 13103935 91.85 ns/op 24 B/op 1 allocs/op
Benchmark_ToString/time.Time#01-12 13198113 91.22 ns/op 24 B/op 1 allocs/op
Benchmark_ToString/[]string-12 65187865 18.35 ns/op 16 B/op 1 allocs/op
Benchmark_ToString/[]int-12 54417859 21.53 ns/op 8 B/op 1 allocs/op
Benchmark_ToString/[2]int-12 32691942 36.57 ns/op 16 B/op 1 allocs/op
Benchmark_ToString/[][]int-12 9382754 128.8 ns/op 112 B/op 6 allocs/op
Benchmark_ToString/[]interface_{}-12 10584483 114.5 ns/op 72 B/op 3 allocs/op
Benchmark_ToString/utils.MyStringer-12 365979882 3.277 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/utils.CustomType-12 11649330 102.5 ns/op 16 B/op 1 allocs/op
Benchmark_ToString_concurrency/int-12 1000000000 0.2619 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/int8-12 1000000000 0.2202 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/int16-12 1000000000 0.2708 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/int32-12 1000000000 0.2658 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/int64-12 1000000000 0.2658 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint-12 1000000000 0.2281 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint8-12 1000000000 0.2223 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint16-12 1000000000 0.2396 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint32-12 1000000000 0.2273 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint64-12 1000000000 0.2271 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/string-12 1000000000 0.2117 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/[]uint8-12 213842515 5.718 ns/op 16 B/op 1 allocs/op
Benchmark_ToString_concurrency/bool-12 1000000000 0.2118 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/float32-12 201081819 6.011 ns/op 4 B/op 1 allocs/op
Benchmark_ToString_concurrency/float64-12 142000966 8.799 ns/op 4 B/op 1 allocs/op
Benchmark_ToString_concurrency/time.Time-12 71451783 18.04 ns/op 24 B/op 1 allocs/op
Benchmark_ToString_concurrency/time.Time#01-12 69313578 17.74 ns/op 24 B/op 1 allocs/op
Benchmark_ToString_concurrency/[]string-12 187564670 6.455 ns/op 16 B/op 1 allocs/op
Benchmark_ToString_concurrency/[]int-12 262707805 4.498 ns/op 8 B/op 1 allocs/op
Benchmark_ToString_concurrency/[2]int-12 129274200 8.777 ns/op 16 B/op 1 allocs/op
Benchmark_ToString_concurrency/[][]int-12 22638411 52.65 ns/op 112 B/op 6 allocs/op
Benchmark_ToString_concurrency/[]interface_{}-12 34120837 35.36 ns/op 72 B/op 3 allocs/op
Benchmark_ToString_concurrency/utils.MyStringer-12 1000000000 0.4259 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/utils.CustomType-12 54806094 25.95 ns/op 16 B/op 1 allocs/op
Benchmark_UnsafeBytes/unsafe-12 1000000000 0.5658 ns/op 0 B/op 0 allocs/op
Benchmark_UnsafeBytes/default-12 88407558 13.50 ns/op 16 B/op 1 allocs/op
Benchmark_UnsafeString/unsafe-12 1000000000 0.3545 ns/op 0 B/op 0 allocs/op
Benchmark_UnsafeString/default-12 100000000 12.09 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/0-12 395954607 3.023 ns/op 0 B/op 0 allocs/op
Benchmark_ByteSize/1-12 65295756 18.15 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/500-12 58264801 20.92 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1024-12 60886531 19.80 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1126-12 53409986 22.69 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1048576-12 60969927 19.41 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1153024-12 53647869 22.12 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1073741824-12 63792180 19.05 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1180696576-12 54560540 22.02 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1099511627776-12 64080169 18.85 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1209033293824-12 52957434 22.01 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1125899906842624-12 65629659 18.33 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1238050092875776-12 56535770 21.73 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1152921504606846976-12 64569356 18.56 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1267763295104794624-12 56481996 21.10 ns/op 16 B/op 1 allocs/op
# Format and Append
Benchmark_FormatUint/small/fiber-12 607527520 1.966 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint/small/strconv-12 607521366 1.973 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint/medium/fiber-12 64427509 19.04 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint/medium/strconv-12 59566404 20.42 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint/large/fiber-12 45395149 26.16 ns/op 24 B/op 1 allocs/op
Benchmark_FormatUint/large/strconv-12 45620366 26.38 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/small_pos/fiber-12 608898928 1.963 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_pos/strconv-12 598721480 1.976 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_neg/fiber-12 616958124 1.946 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_neg/strconv-12 87181050 13.77 ns/op 3 B/op 1 allocs/op
Benchmark_FormatInt/medium_pos/fiber-12 63105722 19.12 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_pos/strconv-12 57454753 20.70 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_neg/fiber-12 63631222 19.10 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_neg/strconv-12 61296942 20.17 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/large_pos/fiber-12 48604558 25.08 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_pos/strconv-12 45605844 26.25 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_neg/fiber-12 47388217 25.09 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_neg/strconv-12 45871998 26.10 ns/op 24 B/op 1 allocs/op
Benchmark_FormatUint32/fiber-12 63452196 18.63 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint32/strconv-12 59485942 20.08 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt32/fiber-12 63030724 18.98 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt32/strconv-12 61887302 19.69 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint16/fiber-12 80149611 14.48 ns/op 5 B/op 1 allocs/op
Benchmark_FormatUint16/strconv-12 77022440 15.43 ns/op 5 B/op 1 allocs/op
Benchmark_FormatInt16/fiber-12 79013646 15.23 ns/op 8 B/op 1 allocs/op
Benchmark_FormatInt16/strconv-12 79695165 15.24 ns/op 8 B/op 1 allocs/op
Benchmark_FormatUint8/fiber-12 599811685 1.947 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint8/strconv-12 84144096 14.18 ns/op 3 B/op 1 allocs/op
Benchmark_FormatInt8/fiber-12 630717244 1.985 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt8/strconv-12 83826201 14.24 ns/op 4 B/op 1 allocs/op
Benchmark_AppendUint/fiber-12 130817422 9.139 ns/op 0 B/op 0 allocs/op
Benchmark_AppendUint/strconv-12 100000000 10.08 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/small_neg/fiber-12 369512403 3.266 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/small_neg/strconv-12 213341739 5.627 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/medium_neg/fiber-12 125937435 9.531 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/medium_neg/strconv-12 122490632 9.791 ns/op 0 B/op 0 allocs/op
# Token
Benchmark_GenerateSecureToken/16_bytes-12 4565527 258.6 ns/op 24 B/op 1 allocs/op
Benchmark_GenerateSecureToken/32_bytes-12 4306404 280.8 ns/op 48 B/op 1 allocs/op
Benchmark_TokenGenerators/UUIDv4-12 4019139 288.2 ns/op 64 B/op 2 allocs/op
Benchmark_TokenGenerators/SecureToken-12 4360036 276.9 ns/op 48 B/op 1 allocs/op
# HTTP
Benchmark_GetMIME/fiber-12 22321272 53.90 ns/op 0 B/op 0 allocs/op
Benchmark_GetMIME/default-12 17492530 68.46 ns/op 0 B/op 0 allocs/op
Benchmark_ParseVendorSpecificContentType/vendorContentType-12 125467813 9.619 ns/op 0 B/op 0 allocs/op
Benchmark_ParseVendorSpecificContentType/defaultContentType-12 404169172 2.974 ns/op 0 B/op 0 allocs/op
Benchmark_StatusMessage/fiber-12 1000000000 0.3349 ns/op 0 B/op 0 allocs/op
Benchmark_StatusMessage/default-12 460456902 2.610 ns/op 0 B/op 0 allocs/op
# IP
Benchmark_IsIPv4/fiber-4 56396187 21.72 ns/op 0 B/op 0 allocs/op
Benchmark_IsIPv4/default-4 28357074 40.38 ns/op 0 B/op 0 allocs/op
Benchmark_IsIPv6/fiber-4 19461662 62.01 ns/op 0 B/op 0 allocs/op
Benchmark_IsIPv6/default-4 13315670 89.84 ns/op 0 B/op 0 allocs/op
# Parse
Benchmark_ParseUint/fiber-12 236748204 5.049 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint/fiber_bytes-12 224650773 5.348 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint/default-12 88588122 13.75 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/6digit-12 207540178 5.769 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/8digit-12 222360716 5.403 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/12digit-12 156132950 7.699 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/19digit-12 135049720 8.880 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/1digit-12 338642533 3.553 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/4digit-12 212370570 5.672 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt/fiber-12 299791800 3.981 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt/fiber_bytes-12 288714712 4.165 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt/default-12 76370292 15.48 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt32/fiber-12 200451391 5.988 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt32/fiber_bytes-12 201629558 5.956 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt32/default-12 78384832 15.71 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt16/fiber-12 220670613 5.462 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt16/fiber_bytes-12 220175068 5.430 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt16/default-12 100000000 10.71 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt8/fiber-12 277948545 4.279 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt8/fiber_bytes-12 264784368 4.566 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt8/default-12 142184748 8.373 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint32/fiber-12 238916116 5.025 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint32/fiber_bytes-12 222286592 5.409 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint32/default-12 90395479 13.33 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint16/fiber-12 251398184 4.828 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint16/fiber_bytes-12 248772012 4.838 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint16/default-12 137015901 8.788 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint8/fiber-12 360430984 3.427 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint8/fiber_bytes-12 327526336 3.659 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint8/default-12 181904056 6.438 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat64/fiber-12 82912768 14.76 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat64/fiber_bytes-12 95692504 12.68 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat64/default-12 50109265 25.05 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat32/fiber-12 76648135 15.76 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat32/fiber_bytes-12 86422119 13.63 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat32/default-12 47198646 25.41 ns/op 0 B/op 0 allocs/op
# Time
Benchmark_CalculateTimestamp/fiber-12 1000000000 0.3366 ns/op 0 B/op 0 allocs/op
Benchmark_CalculateTimestamp/default-12 36163686 32.69 ns/op 0 B/op 0 allocs/op
Benchmark_CalculateTimestamp/fiber_asserted-12 4471299 267.8 ns/op 12 B/op 2 allocs/op
Benchmark_CalculateTimestamp/default_asserted-12 3991147 298.7 ns/op 8 B/op 2 allocs/op
# URL
Benchmark_AppendPathSegmentsEscape/1-segment/fiber-12 84056664 13.99 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/1-segment/split-loop-12 56022625 21.97 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/3-segments/fiber-12 88724314 13.65 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/3-segments/split-loop-12 36393044 32.41 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/6-segments/fiber-12 87622688 13.82 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/6-segments/split-loop-12 23307777 51.23 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/escaping/fiber-12 37647206 31.85 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/escaping/split-loop-12 21136993 58.06 ns/op 0 B/op 0 allocs/op
# XML
Benchmark_GolangXMLEncoder-12 574852 2040 ns/op 4864 B/op 12 allocs/op
Benchmark_DefaultXMLEncoder-12 593738 2012 ns/op 4864 B/op 12 allocs/op
Benchmark_DefaultXMLDecoder-12 309031 3876 ns/op 2892 B/op 57 allocs/op
See all the benchmarks under https://gofiber.github.io/utils/benchmarks
Case-insensitive matching helpers
EqualFold, IndexFold, ContainsFold, HasPrefixFold, and
HasSuffixFold compare ASCII case-insensitively using the SWAR word
loops: only A..Z/a..z fold, every other byte (including bytes
= 0x80) must match exactly.
HasPrefixFoldandHasSuffixFoldcover the header checks Fiber otherwise spells as an allocation-proneToLower+HasPrefix/HasSuffixpair (authorization schemes such asBearer, content-type prefixes such asmultipart/form-data, suffixes such as+json), and like the other Fold helpers they take the needle as a plain string because call sites pass constant tokens. TheirBenchmark_HasPrefixFold/Benchmark_HasSuffixFoldnumbers are tracked on the benchmark charts and join the catalog above on its next regeneration.
HashFold is the hashing half of a case-insensitive lookup table whose
other half is EqualFold: strings EqualFold reports equal hash equal,
so a table of field or header names can be probed with a key in any case
without first lower-casing a copy of it. It folds each word with
swar.ToLowerWord as it loads it and mixes with wyhash's widening
multiply: keys under eight bytes, as most are, pack into one word and
cost one multiply, with the length in the multiplier so that keys which
pack alike, such as a and aa, stay apart; longer keys take one
multiply per sixteen bytes plus a final one. It takes no seed and is no
defense against collisions planned in advance, so it suits keys of the
program's own, such as the fields of a struct, rather than keys an
attacker picks. Against maphash.String of a strings.ToLower copy,
benchstat over ten runs on an Intel Xeon @ 2.80GHz measured 4.8 ns
against 13.2 ns for a 2-byte key, 4.5 ns against 50.7 ns for a 4-byte
key and 14.7 ns against 184 ns for a 48-byte key, where the copy also
allocates;
go test -run='^$' -bench='^Benchmark_HashFold$' -benchmem -count=10 . > hashfold.txt
followed by benchstat hashfold.txt reproduces that comparison. The
HashFold rows in the amd64 table below, like the table's other rows,
are a single run on the machine its header names.
HTTP dates
AppendHTTPDate and FormatHTTPDate write a time in the RFC 9110
preferred HTTP date format (Mon, 02 Jan 2006 15:04:05 GMT,
net/http.TimeFormat), byte-identical to time.Format with that layout
but without walking a layout string: the calendar fields come from one
civil-date conversion of t.Unix() (Hinnant's era arithmetic, instead of
the three abs() walks behind Date, Clock, and Weekday), and are
written into the fixed-width template with two-digit table lookups.
ParseHTTPDate is the reverse: canonical preferred-format input takes a
strict scalar fast path whose validated fields feed time.Unix directly
— the same Time value time.Date builds, minus its normalization pass —
and everything else — the obsolete RFC 850 and asctime forms, unusual
casing, non-GMT zone names, padding — falls back to time.Parse with
net/http.ParseTime semantics, including its errors. Both directions are
pinned to the time package by a day-by-day sweep over the years
0..9999. Date, Last-Modified, and If-Modified-Since handling sit on
every request/response, which makes these the highest-leverage helpers in
this group for Fiber.
URL escaping
AppendQueryEscape/AppendPathEscape and
AppendQueryUnescape/AppendPathUnescape produce byte-identical results
(and, for the unescape pair, identical url.EscapeError values) to their
net/url counterparts, as append-style, allocation-free single passes.
The escape tables are pinned to net/url.shouldEscape by exhaustive
per-byte tests. Unescaping jumps between escape sites with the vectorized
scans (IndexAny2 when + needs rewriting, bytes.IndexByte otherwise)
and copies clean spans wholesale, so route parameters and query values
without escapes — the common case — cost one scan and one copy. Decoding
never grows the input, so dst may be s[:0] on a common backing array
to unescape in place; escaping can grow the input, so there dst must
not alias s.
AppendPathSegmentsEscape covers a whole multi-segment path in one pass:
it escapes every segment as AppendPathEscape does and keeps the /
between them. The output equals escaping each segment and joining with
/, pinned per byte and by fuzzing; net/url's whole-path escaping
differs, as it also leaves ; and , unescaped. The catalog above
measures it against the per-segment loop a caller writes without it; the
other URL benchmarks are still in the amd64 block below.
JSON string escaping
AppendJSONString appends a value as a double-quoted JSON string,
byte-identical to encoding/json.Marshal of the same string — including
its default HTML escaping (<, >, &), the \ufffd replacement of
invalid UTF-8 bytes, and the U+2028/U+2029 escapes — without any of
Marshal's reflection or allocation. Clean spans are located with a SWAR
scan (the same first-match-mask technique as IndexNonQuotable) and
copied wholesale. This is the building block for hand-rolled JSON hot
paths such as access-log lines and error bodies.
IP address parsing
ParseIPv4 and ParseIPv6 parse addresses into netip.Addr, accepting
exactly the strings netip.ParseAddr accepts for the respective family
(pinned by fuzzing) while reporting failure with a bool instead of a
constructed error. Both take strings or byte slices, so fasthttp-style
callers skip the string conversion entirely; remote-address and
trusted-proxy checks parse an IP on every request in Fiber.
Header key canonicalization
CanonicalHeaderKey Title-Cases an HTTP header key exactly like
net/http.CanonicalHeaderKey, including its return-unchanged guard for
keys containing non-token bytes. Already-canonical keys — the common case
on receive paths — are validated in a single table pass and returned
as-is with zero allocations for strings and byte slices alike. Keys that
do need rewriting cost one allocation; note that for the ~40 header names
in the stdlib's interning table the stdlib returns a cached string
without allocating, so this helper's edge there is time, not allocations.
Control-byte scanning
IndexControl returns the index of the first ASCII control byte — a byte
below 0x20 or DEL (0x7F), the RFC 5234 CTL set — and IndexControlExceptTab
is the same scan with HTAB permitted, which is the byte set an RFC 9110
field value may not contain. Both are SWAR first-match scans
(two words per branch, one overlapping word for the tail) over strings or
byte slices; the HTAB exemption is tested only in words that hold a
control byte, so clean input costs the same either way. They never match
bytes >= 0x80, so unlike
strings.IndexFunc(s, unicode.IsControl) they neither decode UTF-8 nor
flag the C1 range hidden inside it. Fiber spells this check by hand in
half a dozen places — header values before they are echoed, request IDs,
Location values, log fields, Basic auth credentials — and each copy is
one of these two calls.
Byte-separator cuts
CutByte and LastCutByte are strings.Cut/bytes.Cut for a single
byte separator, around its first or last occurrence, generic over strings
and byte slices. They return the two parts and a found flag exactly like
the stdlib pair (including the ""/nil after-part of a miss), cost one
IndexByte/LastIndexByte, and spare []byte callers the []byte{sep}
needle and the length dispatch inside bytes.Index. CutByte beats
strings.Cut; LastCutByte has no stdlib counterpart, so its row is
measured against a hand-written LastIndexByte split, which it trails by
the cost of the call — its value is the generic []byte support and the
readable spelling. Header parameter splits (;), key=value pairs, and
host/port and name/extension splits are the intended call sites.
Host and port splitting
SplitHostPort splits host:port, host%zone:port, [host]:port, and
[host%zone]:port with exactly net.SplitHostPort's acceptance rules
(pinned by fuzzing against it), but reports failure with a bool instead
of constructing a *net.AddrError, and accepts byte slices. Valid input
costs the same as the stdlib — the scan is the same three IndexByte
calls — so the win is on the rejection path, where a malformed Host or
Forwarded value no longer costs an allocation, and on []byte input,
which no longer needs a string conversion first.
List field iteration
SplitTrimSeq returns an iterator over the elements of a list separated
by one byte, with ASCII whitespace trimmed from each element and empty
elements skipped — how HTTP list fields such as Accept-Encoding,
Connection, Vary, and Cache-Control are read (RFC 9110 Section
5.6.1: optional whitespace around the commas, empty elements ignored).
It replaces the strings.SplitSeq + TrimSpace + emptiness-check
triplet, locates each separator with a single IndexByte, works on
strings and byte slices alike, and yields subslices without copying. In
an ordinary caller the iterator inlines and allocates nothing, like
strings.SplitSeq; the benchmark ranges inside a helper function for
that reason, because calls made directly inside a b.Loop body are
never inlined and would show the closure allocations instead.
Duration formatting
AppendDuration renders a time.Duration exactly as d.String() does —
"72h3m0.5s", "1.5ms", "0s" — into the caller's buffer, with the two-digit
table for the field digits; a value with no fraction, the common case,
never touches the fraction digits. d.String() allocates its result and
fmt.Fprintf("%v", d), which Fiber's logger uses for the latency column,
costs several times more on top; an append-style form makes per-request
duration rendering (access logs, Server-Timing) allocation-free.
Decimal formatting
FormatUint/FormatInt (and their 32- and 16-bit variants) and
AppendUint/AppendInt render integers eight digits at a time: a value
below 1e8 becomes eight zero-padded digit lanes through a fixed sequence
of multiplies, shifts, and masks (the SWAR inverse of the 8-digit parse
step in ParseInt), so a 64-bit value costs at most three such
conversions and two divisions, all independent of each other, instead of
one dependent divide-and-store per digit; the first significant digit is
found with a trailing-zero count. Values below 100 come from a
precomputed table, and the output is pinned to strconv by a dense sweep
plus every decimal and lane-group boundary. GetMIME in the same spirit
looks up extensions through a hash table keyed by the extension packed
into one lower-cased word with its length in the top lane, so a hit is a
multiply, a shift, and one slot comparison, with no allocation even for
upper-case input.
These helpers were added on an amd64 machine, so like the simd numbers
their benchmarks are recorded separately from the arm64 catalog above and
join it on its next regeneration. The block also carries the current
numbers for the paths reworked on the same machine (integer formatting,
GetMIME, token-sized EqualFold), whose arm64 rows above predate that
work:
Environment: goos: linux goarch: amd64 pkg: github.com/gofiber/utils/v2 cpu: AMD EPYC
// go test -benchmem -run=^$ -count=1 . -bench='^Benchmark_(FormatUint|FormatInt|FormatUint32|FormatInt32|FormatUint16|FormatInt16|AppendUint|AppendInt|EqualFold_Short|HashFold|GetMIME|AppendHTTPDate|ParseHTTPDate|AppendDuration|AppendQueryEscape|AppendQueryUnescape|AppendPathUnescape|AppendJSONString|ParseIPv4|ParseIPv6|CanonicalHeaderKey|IndexControl|CutByte|LastCutByte|SplitHostPort|SplitTrimSeq)$'
Benchmark_EqualFold_Short/3B/fiber-4 545916512 2.196 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/3B/default-4 348854562 3.437 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/4B/fiber-4 520734724 2.306 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/4B/default-4 300082318 3.992 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/5B/fiber-4 515355369 2.330 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/5B/default-4 453217892 2.677 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/7B/fiber-4 518183712 2.313 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/7B/default-4 423973927 2.824 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/8B/fiber-4 559857001 2.149 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/8B/default-4 372448862 3.203 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/10B/fiber-4 365249606 3.284 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/10B/default-4 302105649 4.010 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/16B/fiber-4 294948310 4.260 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/16B/default-4 186458998 6.273 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/2B/fiber-4 658326528 1.824 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/2B/default-4 242747058 4.967 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/4B/fiber-4 741680288 1.622 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/4B/default-4 67574636 17.78 ns/op 8 B/op 1 allocs/op
Benchmark_HashFold/12B/fiber-4 508330192 2.359 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/12B/default-4 20314017 59.68 ns/op 16 B/op 1 allocs/op
Benchmark_HashFold/17B/fiber-4 293925604 4.081 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/17B/default-4 17488249 68.42 ns/op 24 B/op 1 allocs/op
Benchmark_HashFold/48B/fiber-4 195048040 6.158 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/48B/default-4 10982050 109.4 ns/op 48 B/op 1 allocs/op
Benchmark_IndexControl/clean-16B/fiber-4 541015839 2.203 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-16B/fiber-except-tab-4 548823001 2.185 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-16B/default-4 146518426 8.165 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-64B/fiber-4 202882459 5.913 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-64B/fiber-except-tab-4 202634295 5.917 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-64B/default-4 32725784 36.41 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/ctl-at-end-64B/fiber-4 161422598 7.431 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/ctl-at-end-64B/fiber-except-tab-4 167424020 7.199 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/ctl-at-end-64B/default-4 32916850 36.86 ns/op 0 B/op 0 allocs/op
Benchmark_CutByte/fiber-4 425650492 2.819 ns/op 0 B/op 0 allocs/op
Benchmark_CutByte/default-4 337287391 3.692 ns/op 0 B/op 0 allocs/op
Benchmark_CutByte/fiber-bytes-4 395624023 3.036 ns/op 0 B/op 0 allocs/op
Benchmark_CutByte/default-bytes-4 333960130 3.599 ns/op 0 B/op 0 allocs/op
Benchmark_LastCutByte/fiber-4 780435663 1.543 ns/op 0 B/op 0 allocs/op
Benchmark_LastCutByte/default-4 749733099 1.566 ns/op 0 B/op 0 allocs/op
Benchmark_AppendDuration/micros/fiber-4 214962259 5.587 ns/op 0 B/op 0 allocs/op
Benchmark_AppendDuration/micros/default-4 82014056 14.20 ns/op 8 B/op 1 allocs/op
Benchmark_AppendDuration/micros/fmt-4 22779084 53.52 ns/op 16 B/op 2 allocs/op
Benchmark_AppendDuration/millis-frac/fiber-4 152250303 7.878 ns/op 0 B/op 0 allocs/op
Benchmark_AppendDuration/millis-frac/default-4 63274092 17.96 ns/op 16 B/op 1 allocs/op
Benchmark_AppendDuration/millis-frac/fmt-4 20682213 58.15 ns/op 24 B/op 2 allocs/op
Benchmark_AppendDuration/hours/fiber-4 162731878 7.376 ns/op 0 B/op 0 allocs/op
Benchmark_AppendDuration/hours/default-4 63937058 18.51 ns/op 8 B/op 1 allocs/op
Benchmark_AppendDuration/hours/fmt-4 20125533 57.85 ns/op 16 B/op 2 allocs/op
Benchmark_FormatUint/small/fiber-4 1000000000 1.195 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint/small/strconv-4 1000000000 1.191 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint/medium/fiber-4 77792739 14.66 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint/medium/strconv-4 86661225 14.33 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint/large/fiber-4 73494848 16.57 ns/op 24 B/op 1 allocs/op
Benchmark_FormatUint/large/strconv-4 57344931 20.75 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/small_pos/fiber-4 1000000000 1.193 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_pos/strconv-4 1000000000 1.177 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_neg/fiber-4 867438553 1.394 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_neg/strconv-4 132012771 9.100 ns/op 3 B/op 1 allocs/op
Benchmark_FormatInt/medium_pos/fiber-4 81908667 15.00 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_pos/strconv-4 82768414 14.35 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_neg/fiber-4 80224928 14.83 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_neg/strconv-4 83586040 14.35 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/large_pos/fiber-4 71807041 17.17 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_pos/strconv-4 57482294 20.95 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_neg/fiber-4 72537430 16.65 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_neg/strconv-4 56898590 21.06 ns/op 24 B/op 1 allocs/op
Benchmark_FormatUint32/fiber-4 88893556 13.21 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint32/strconv-4 84803842 14.29 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt32/fiber-4 83287166 13.45 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt32/strconv-4 83238232 14.33 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint16/fiber-4 127277752 9.431 ns/op 5 B/op 1 allocs/op
Benchmark_FormatUint16/strconv-4 100000000 10.33 ns/op 5 B/op 1 allocs/op
Benchmark_FormatInt16/fiber-4 100000000 10.28 ns/op 8 B/op 1 allocs/op
Benchmark_FormatInt16/strconv-4 100000000 11.08 ns/op 8 B/op 1 allocs/op
Benchmark_AppendUint/fiber-4 166932072 7.187 ns/op 0 B/op 0 allocs/op
Benchmark_AppendUint/strconv-4 176215983 6.826 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/small_neg/fiber-4 535174642 2.235 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/small_neg/strconv-4 390787201 3.045 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/medium_neg/fiber-4 166345695 7.211 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/medium_neg/strconv-4 166855051 7.192 ns/op 0 B/op 0 allocs/op
Benchmark_CanonicalHeaderKey/canonical/fiber-4 168458787 7.093 ns/op 0 B/op 0 allocs/op
Benchmark_CanonicalHeaderKey/canonical/default-4 96998062 12.35 ns/op 0 B/op 0 allocs/op
Benchmark_CanonicalHeaderKey/common-lower/fiber-4 58399408 20.13 ns/op 16 B/op 1 allocs/op
Benchmark_CanonicalHeaderKey/common-lower/default-4 43953460 27.26 ns/op 0 B/op 0 allocs/op
Benchmark_CanonicalHeaderKey/custom-lower/fiber-4 44137891 27.38 ns/op 24 B/op 1 allocs/op
Benchmark_CanonicalHeaderKey/custom-lower/default-4 29846257 40.17 ns/op 24 B/op 1 allocs/op
Benchmark_SplitHostPort/host-port/fiber-4 197468534 6.143 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/host-port/default-4 185653338 6.392 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/ipv6-port/fiber-4 172519077 6.956 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/ipv6-port/default-4 168545616 7.119 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/missing-port/fiber-4 317374330 3.745 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/missing-port/default-4 70204908 16.85 ns/op 32 B/op 1 allocs/op
Benchmark_GetMIME/fiber-4 89935794 13.62 ns/op 0 B/op 0 allocs/op
Benchmark_GetMIME/default-4 24408958 48.78 ns/op 0 B/op 0 allocs/op
Benchmark_AppendHTTPDate/fiber-4 82853976 14.47 ns/op 0 B/op 0 allocs/op
Benchmark_AppendHTTPDate/default-4 20357546 59.42 ns/op 0 B/op 0 allocs/op
Benchmark_ParseHTTPDate/fiber-4 135122982 8.880 ns/op 0 B/op 0 allocs/op
Benchmark_ParseHTTPDate/default-4 16657530 72.29 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv4/fiber-4 143262094 8.373 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv4/default-4 96330211 12.54 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv6/compressed/fiber-4 64978478 17.98 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv6/compressed/default-4 52846597 22.54 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv6/full/fiber-4 51265544 23.45 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv6/full/default-4 41648409 29.53 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/clean-16B/fiber-4 139753198 8.582 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/clean-16B/default-4 19869510 59.22 ns/op 40 B/op 2 allocs/op
Benchmark_AppendJSONString/clean-64B/fiber-4 46100394 25.94 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/clean-64B/default-4 13132239 90.22 ns/op 96 B/op 2 allocs/op
Benchmark_AppendJSONString/escaped-64B/fiber-4 17267736 69.47 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/escaped-64B/default-4 9328038 128.8 ns/op 96 B/op 2 allocs/op
Benchmark_AppendJSONString/unicode-64B/fiber-4 11569064 104.1 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/unicode-64B/default-4 8514000 138.8 ns/op 112 B/op 2 allocs/op
Benchmark_SplitTrimSeq/accept-encoding/fiber-4 100000000 10.12 ns/op 0 B/op 0 allocs/op
Benchmark_SplitTrimSeq/accept-encoding/default-4 100000000 11.03 ns/op 0 B/op 0 allocs/op
Benchmark_SplitTrimSeq/accept/fiber-4 47568871 25.21 ns/op 0 B/op 0 allocs/op
Benchmark_SplitTrimSeq/accept/default-4 46427307 25.86 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryEscape/clean-64B/fiber-4 61480458 17.97 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryEscape/clean-64B/default-4 33102990 36.57 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryEscape/mixed-64B/fiber-4 14009313 85.76 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryEscape/mixed-64B/default-4 12414153 94.25 ns/op 192 B/op 2 allocs/op
Benchmark_AppendQueryUnescape/plain-64B/fiber-4 178989290 6.729 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryUnescape/plain-64B/default-4 24298354 49.65 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryUnescape/escaped-64B/fiber-4 12713310 95.28 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryUnescape/escaped-64B/default-4 12207998 98.43 ns/op 48 B/op 1 allocs/op
Benchmark_AppendPathUnescape/plain-25B/fiber-4 216255505 5.560 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathUnescape/plain-25B/default-4 68955292 17.43 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathUnescape/escaped-31B/fiber-4 51446673 23.39 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathUnescape/escaped-31B/default-4 25162122 47.84 ns/op 24 B/op 1 allocs/op
Float parsing
ParseFloat64 and ParseFloat32 return the float strconv.ParseFloat
returns, bit for bit, for an optional sign, digits with an optional point and
an optional exponent, in strings or byte slices. The spellings strconv adds
(inf, nan, hexadecimal floats, underscores) are syntax errors, and a value
too large for the type is a range error; every error comes with a zero
result, where strconv returns ±Inf for a range error. A mantissa up to 2^53
(2^24 for ParseFloat32) with an exponent of at most 22 (10) either way is
one multiplication or division by an exact power of ten, which rounds
correctly (Clinger's fast path, strconv's own first step). An exponent past
which every 64-bit mantissa is zero or infinity is settled at once, and so is
a product that is an integer times a power of two (the halfway points between
floats, integers past 2^53, decimals padded with zeros), with integer
arithmetic. Everything else goes to strconv.ParseFloat: the text itself up
to 700 bytes, and past that an exact mantissa and exponent or, for a number
with more digits than a uint64 holds, at most 768 digits, a final 1 for any
nonzero digit after them and an exponent, a form strconv reads correctly
however long the input was. Benchmark_ParseFloat_Shapes times each shape
against strconv: 2 to 3 times as fast on the fast path, and 1.3 to 1.7 times
slower on the numbers handed over to it, whose digits are read twice.
Size strings
ConvertToBytes turns 42, 42kb, 1.5GiB or 130.51MB into a byte
count: decimal units are powers of 1000, units with an i are powers of
1024, and the result saturates at math.MaxInt. The number may have a
+, a point and an exponent (+2.01k, 1.5e3K), with any number of
digits, and is scaled with 128-bit integer arithmetic, so the result is the
exact product rounded down (65.35KB is 65350) and never passes through a
float64. A number with more digits than a uint64 holds is scaled from its
first digits when they and the same digits plus one agree, and otherwise
(0.000000000931322574615478515625Gi is exactly one byte) from all of them.
A negative or malformed size is 0, and an unknown unit counts as bytes. A
whole number, with or without a unit, is one digit loop and a multiplication.
Benchmark_ConvertToBytes_Shapes times each shape.
SWAR primitives
The swar package exports the SWAR (SIMD within a register)
building blocks the helpers above are composed from: Load8/Store8,
Broadcast, ZeroLanes, MatchByteMask/MatchRangeMask,
ToLowerWord/ToUpperWord, FirstLane/LastLane, and the WordLen,
Ones, HighBits, and LowSeven constants. They are exported so
downstream packages (Fiber itself, middleware) can fuse their own byte
scans — for example, finding a delimiter while classifying the bytes
before it — without re-deriving the bit tricks. The contracts (unchecked
bounds preconditions, ZeroLanes' approximate mask, the little-endian
lane order) and runnable examples live in the package documentation.
The package benchmarks its primitives against their stdlib counterparts
the same way the helpers above do, measuring the canonical loops composed
from them: Load8/Store8 vs encoding/binary's little-endian
Uint64/PutUint64, a ZeroLanes first-match scan vs
strings.IndexByte, a MatchByteMask+LastLane reverse scan vs
bytes.LastIndexByte, a MatchRangeMask digit scan vs
strings.IndexAny, and an in-place ToLowerWord loop vs
bytes.ToLower. The composed loops are pinned to the stdlib results by a
dedicated test, and the numbers are tracked per commit on the
benchmark charts. Note
that strings.IndexByte is hand-written SIMD assembly and overtakes the
portable SWAR scan on large inputs; the SWAR primitives earn their keep
on short HTTP-sized inputs and on fused scans the stdlib has no single
function for. The package's remaining benchmark, Benchmark_Load8_Fusion,
is an advisory codegen guard rather than an API performance promise, so
it is deliberately not part of the catalog above.
SIMD-accelerated search (package simd)
The simd package is the vector-width counterpart to swar: byte
searching and validation whose scan kernels dispatch to AVX2 assembly (four
32-byte vectors per iteration) on amd64 CPUs for inputs of simd.MinLen
(32) bytes or more, and fall back to portable loops built on the swar
primitives everywhere else, so it builds and behaves identically on every
platform.
simd.Accelerated() reports which mode is active. CPU capability detection
uses golang.org/x/sys/cpu,
which also verifies OS support for saving the vector register state.
The AVX2-backed kernels are the multi-needle scans (Memchr2, Memchr3),
the paired-byte scan (MemchrPair), the class scans
(MemchrDigit/MemchrDigitAt, MemchrWord/MemchrNotWord), the ASCII
scans (IsASCII, FirstNonASCII, CountNonASCII), and the substring
search (Memmem), which
prefilters on the needle's rarest bytes (SelectRareBytes, ByteRank)
before verifying candidates — 2-6 byte needles containing two distinct
values are scanned for their two rarest bytes at the exact relative
distance, longer or single-valued needles for the single rarest byte.
Each kernel classifies four 32-byte vectors per iteration. Where the
result is a position or a yes/no, the four masks are combined, so a
128-byte block costs a single VPMOVMSKB and a single branch, and the
scans that report a position re-extract the four masks in address order on
the (rare) hit path. CountNonASCII is the exception — a count cannot be
recovered from a combined mask, so its block loop accumulates per-lane
counts in vector byte lanes (a signed compare against zero and a byte
subtract per vector) and reduces them once at the end, while the
remaining whole vectors are extracted and population-counted; it is the
one kernel gated on POPCNT in addition to AVX2.
One tier is documented explicitly as unaccelerated:
MemchrInTable/MemchrNotInTable are plain
scalar loops, since an arbitrary 256-entry membership test has no cheap
vector form. There is deliberately no single-needle Memchr:
bytes.IndexByte is already vector-accelerated by the Go runtime. Memmem
delegates to bytes.Index for haystacks of up to 64 bytes, where the
stdlib's brute-force vector kernel is level with the paired prefilter
(Benchmark_Memmem_Prefilter forces the prefilter helpers at every size
to keep that measurable); from 65 bytes bytes.Index switches to a loop
anchored on the needle's first byte, and the paired scan takes over.
Needles that take the single rare-byte scan keep a 128-byte routing point,
since that scan is less selective. Both prefilters bail to bytes.Index
after a bounded number of failed candidate verifications, so even
adversarial inputs — a rare byte everywhere plus a long almost-matching
needle — stay within a constant of the stdlib's O(n+m) (see
Benchmark_Memmem_Adversarial). The
package operates on []byte only; the generic top-level helpers IsASCII,
IndexAny2, and IndexAny3 dispatch into it automatically for inputs of
simd.MinLen+ bytes on amd64, which is where the AVX2 kernels overtake the
SWAR word loops (-35% to -88% ns/op at 32-512B in benchstat -count=10
runs; shorter inputs keep the existing SWAR paths).
The kernels are adapted from the coregex
project's simd package (MIT License, Copyright (c) 2025 Andrey Kolkov and
contributors; see simd/LICENSE), with the legacy-SSE
register moves in the kernels replaced by VEX-encoded ones to avoid AVX-SSE
transition stalls, the scalar tail loops replaced by overlapping vector
rescans at the buffer end (a 63-byte scan previously cost ~3.7x a 64-byte
one), the 32-byte main loops replaced by 4x unrolled 128-byte blocks whose
bound is tested once at the bottom against a precomputed limit pointer, the
\w classifier rewritten from three VPMINUB/VPMAXUB clamp-and-compare
range tests into two VPSHUFB nibble-table lookups (with the block test
reduced to one compare over the four raw class values), the digit range
test reduced from two signed compares and a VPANDN to one biased
VPADDB and one compare, FirstNonASCII and CountNonASCII given
kernels of their own (they were SWAR-only, and the count kernel's block
loop accumulates in vector byte lanes rather than extracting and
population-counting every vector's mask), the 128-byte block loops
placed at fixed offsets inside a 32-byte code window so their throughput
no longer depends on where the linker places each kernel, and the
fallbacks reworked around the stdlib and the swar package as described
above.
Against the pre-unrolling kernels, benchstat -count=10 on the machine
below reports -26.6%/-49.7% ns/op for Memchr2 at 512B/4096B,
-17.6%/-34.3% for Memchr3, -13.4%/-24.6% for MemchrPair,
-39.2%/-50.5% for MemchrDigit, -53.5%/-63.7% for MemchrNotWord,
-42.2%/-65.7% for IsASCII, and -13.7%/-27.1% for Memmem, which rides
the paired scan. Those percentages come from benchstat over ten runs of
each side; the single-run table below is a catalog, not a base-vs-head
comparison, so subtracting its rows from an older copy of it will not
reproduce them.
Two bands see no benefit and are worth stating plainly. Inputs below
simd.MinLen never reach the kernels at all. Inputs of 32-127 bytes do
reach them but skip the 128-byte block loop, so they pay its setup with
nothing to amortize it against: across that band benchstat reports the
class scans clearly ahead (MemchrNotWord -8.6% at 32B, -18.4% at 64B;
IsASCII -5.0%/-4.3%), most rows statistically unchanged, and two small
regressions — MemchrDigit +5.6% at 32B and Memchr3 +3.8% at 64B. Read
those small-input figures against the run's own noise floor: the default
legs call unchanged stdlib code, so their movement bounds what a delta of
that size means. They held within 1% in the run quoted here, but a later
run on the same machine drifted up to 17% on those same rows, so anything
under ~10% at 32-64B should be taken as "no measured change" unless its
control legs are quiet.
On the portable side, pinning each unrolled group of words with a reslice
before loading at constant offsets inside it removes the per-load bounds
check that swar.Load8's own reslice otherwise repeats. Measured with
benchstat -count=10 against the same fallbacks, at 32B/512B/4KiB:
IsASCII -28%/-60%/-63%, CountNonASCII -24%/-44%/-44%,
FirstNonASCII -23%/-37%/-43%, Memchr2 -19%/-23%/-25%,
MemchrDigit -7%/-12%/-17%, Memchr3 -8%/-13%/-18%,
MemchrWord -11%/-8%/-11%, MemchrNotWord -5%/-7%/-6%. The tier a group
adds costs one compare on inputs too short to use it, which shows up as
+3% to +10% on some of the 8B fallback rows — a few tenths of a
nanosecond, and only below the length where the group pays for itself.
utils.IsASCII carries the same rework, so the two copies of that scan
stay in step.
Making the counting kernel finish its own sub-vector remainder (rather
than splitting the input in Go and calling the SWAR loop for the tail)
also removed a second non-inlinable call from every whole-vector input:
CountNonASCII at 32B went from 11.3ns — behind its own fallback — to
6.8ns, level with it, and it leads from 64B up.
A later audit pass reworked the kernels and fallbacks once more;
benchstat -count=10 on the machine below, base vs. head, reports:
MemchrDigit-20% at 512B and -27% at 4KiB from the one-add, one-compare range test.MemchrWord-13%/-11% andMemchrNotWord-4%/-10% at 512B/4KiB from comparing the reduced block once instead of every vector, and their SWAR fallbacks -36%/-41% at 32B, -40%/-43% at 64B and -43%/-45% at 512B: 15 ALU operations per word instead of 26, from case-folding the two letter ranges into one test, a one-add underscore test, and a single shared ASCII gate.CountNonASCII-15% at 512B and -41% at 4KiB, with 32B and 64B unchanged: the block loop counts in vector byte lanes (a signed compare against zero and a byte subtract per vector, flushed throughVPSADBWevery 127 blocks) instead of four port-0VPMOVMSKBextractions per block. The remaining whole vectors are still extracted and population-counted, because the vector reduction is a fixed ten-cycle chain that one to three vectors cannot amortize — a first version that used the accumulators for those too was 20% slower at 32-64B.MemchrPair's SWAR fallback -33% at 32B, -41% at 64B, -51% at 512B and -52% at 4KiB, andMemchrPairitself -30% at 32B, where the dispatch routes to that fallback: it now scans two words per branch through pinned three-index windows (no per-load capacity check or pointer clamp) and finishes with one overlapping word instead of a scalar tail. Before, at 32B, it ran no faster than a plain scalar loop.Memmem-62% at 96B: needles that take the paired prefilter are routed through it from 65-byte haystacks, wherebytes.Indexleaves its brute-force vector kernel for a first-byte-anchored loop; 64B and 128B+ are unchanged.
The same pinned-window rework applied to the case-conversion loops in
internal/caseconv, which the strings and bytes packages' ToLower
and ToUpper build on, gives on the same machine -27% to -37% ns/op for
the in-place UnsafeToLower/UnsafeToUpper at 39-64B, -14% to -19% for
the scan-only path that finds nothing to convert, and -5% to -17% for the
allocating conversions, where the allocation dominates. The arm64 catalog
rows above were not regenerated for that change.
Comparing the base and head test binaries also showed the untouched
MemchrPair kernel ~10% slower at 4KiB, purely because the linker had
moved its entry by 32 bytes: on Skylake-derived cores the JCC erratum
mitigation keeps a macro-fused compare-and-branch that crosses or ends on
a 32-byte boundary out of the decoded-uop cache, so the block loop ran
from the legacy decoder. Every block loop is now placed by a BLOCKALIGN
macro at a window offset where all of its fused pairs fit (a few
once-per-call NOPs, visible as +5% on Memchr2 at 512B and nothing at
4KiB), and an amd64 test reads each kernel's code and fails if a later
edit lets a pair straddle a boundary again.
Because the AVX2 kernels only engage on amd64, their benchmark numbers are recorded separately from the arm64 catalog above:
Environment: goos: linux goarch: amd64 pkg: github.com/gofiber/utils/v2/simd cpu: AMD EPYC
// go test ./simd/ -benchmem -run=^$ -bench=Benchmark_ -count=1
Benchmark_Memchr2/8B/simd-4 448702150 2.629 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/8B/scalar-4 458948080 2.591 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/8B/default-4 80828568 15.19 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/32B/simd-4 551499657 2.195 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/32B/scalar-4 257724674 4.609 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/32B/default-4 74891224 16.10 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/64B/simd-4 466191375 2.396 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/64B/scalar-4 153556369 7.813 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/64B/default-4 43677663 27.44 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/512B/simd-4 281867703 4.197 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/512B/scalar-4 22728276 52.57 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/512B/default-4 5627893 213.3 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/4096B/simd-4 46009965 26.18 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/4096B/scalar-4 2840878 423.0 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/4096B/default-4 729380 1645 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/8B/simd-4 359856063 3.305 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/8B/scalar-4 428945610 2.800 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/8B/default-4 80533312 14.97 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/32B/simd-4 525750321 2.246 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/32B/scalar-4 208787151 5.747 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/32B/default-4 72554917 16.61 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/64B/simd-4 456248272 2.608 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/64B/scalar-4 122297224 9.814 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/64B/default-4 42806076 28.02 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/512B/simd-4 225914192 5.260 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/512B/scalar-4 17531822 68.20 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/512B/default-4 5573582 215.2 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/4096B/simd-4 32023327 37.51 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/4096B/scalar-4 2226567 539.9 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/4096B/default-4 732044 1639 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/8B/simd-4 217282616 5.509 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/8B/swar-4 314719844 3.574 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/8B/scalar-4 422881550 2.779 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/32B/simd-4 207050652 5.801 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/32B/swar-4 248582592 4.838 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/32B/scalar-4 95052945 12.72 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/64B/simd-4 377263140 3.186 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/64B/swar-4 155256835 7.725 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/64B/scalar-4 47530032 25.24 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/512B/simd-4 207748032 5.771 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/512B/swar-4 24392611 49.23 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/512B/scalar-4 5721051 210.3 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/4096B/simd-4 36516523 32.85 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/4096B/swar-4 3116662 385.4 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/4096B/scalar-4 734092 1633 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/8B/simd-4 466294860 2.585 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/8B/scalar-4 667278902 1.592 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/32B/simd-4 603776600 2.026 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/32B/scalar-4 400040438 3.006 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/64B/simd-4 502343226 2.385 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/64B/scalar-4 226996323 5.279 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/512B/simd-4 316641714 3.788 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/512B/scalar-4 32100192 37.41 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/4096B/simd-4 57886653 20.71 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/4096B/scalar-4 3979412 301.9 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/8B/simd-4 420807253 2.854 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/8B/scalar-4 539682006 2.224 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/32B/simd-4 468429864 2.584 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/32B/scalar-4 186980841 6.076 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/64B/simd-4 431646770 2.784 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/64B/scalar-4 100000000 10.85 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/512B/simd-4 200920446 7.052 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/512B/scalar-4 15099314 79.49 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/4096B/simd-4 28554024 42.03 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/4096B/scalar-4 1884114 636.3 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/8B/simd-4 406962678 2.951 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/8B/scalar-4 508065927 2.354 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/32B/simd-4 499139647 2.392 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/32B/scalar-4 192618093 6.216 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/64B/simd-4 456426800 2.616 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/64B/scalar-4 100000000 11.41 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/512B/simd-4 211134301 5.688 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/512B/scalar-4 14514092 82.87 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/4096B/simd-4 28571172 42.00 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/4096B/scalar-4 1818038 659.7 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/8B/simd-4 254839668 4.806 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/8B/default-4 306084612 3.776 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/32B/simd-4 231904362 5.184 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/32B/default-4 273986822 4.382 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/64B/simd-4 177333220 6.771 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/64B/default-4 200886346 5.969 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/96B/simd-4 139523696 8.212 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/96B/default-4 56131904 21.32 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/128B/simd-4 135103468 8.987 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/128B/default-4 44920484 26.67 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/192B/simd-4 135163220 8.888 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/192B/default-4 28838277 41.55 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/512B/simd-4 100000000 10.07 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/512B/default-4 9984771 120.1 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/4096B/simd-4 31788024 37.74 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/4096B/default-4 1297507 924.7 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/8B/paired-4 206058856 5.832 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/8B/paired-stdlib-4 317587828 3.784 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/32B/paired-4 142196713 8.445 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/32B/paired-stdlib-4 273816424 4.383 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/32B/single-4 159189033 7.315 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/32B/single-stdlib-4 250722778 4.571 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/64B/paired-4 228785918 5.221 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/64B/paired-stdlib-4 200992668 5.971 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/64B/single-4 88249381 13.59 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/64B/single-stdlib-4 100000000 10.70 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/96B/paired-4 221194490 5.430 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/96B/paired-stdlib-4 56390828 21.29 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/96B/single-4 68078998 17.62 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/96B/single-stdlib-4 75046800 15.97 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/128B/paired-4 214110559 5.608 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/128B/paired-stdlib-4 45139016 26.61 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/128B/single-4 48956462 24.52 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/128B/single-stdlib-4 54843796 21.79 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/192B/paired-4 206683298 5.807 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/192B/paired-stdlib-4 28947043 41.53 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/192B/single-4 31107553 38.56 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/192B/single-stdlib-4 33008841 36.37 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/512B/paired-4 151729483 7.867 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/512B/paired-stdlib-4 9849835 119.9 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/512B/single-4 10850151 110.7 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/512B/single-stdlib-4 10316330 116.4 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/4096B/paired-4 33893401 35.44 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/4096B/paired-stdlib-4 1298043 924.4 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/4096B/single-4 1297876 925.5 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/4096B/single-stdlib-4 1304458 918.2 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Adversarial/simd-4 1146 1045883 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Adversarial/default-4 1148 1045643 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/8B/simd-4 552113409 2.182 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/8B/swar-4 1000000000 1.160 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/32B/simd-4 552101168 2.180 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/32B/swar-4 636482116 1.877 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/64B/simd-4 552066571 2.190 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/64B/swar-4 575329918 2.075 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/512B/simd-4 402934330 2.984 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/512B/swar-4 168495673 7.059 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/4096B/simd-4 83804049 14.31 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/4096B/swar-4 24237244 49.80 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/8B/simd-4 467574552 2.582 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/8B/swar-4 672393433 1.528 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/32B/simd-4 602724621 1.992 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/32B/swar-4 550563612 2.049 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/64B/simd-4 601575296 2.189 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/64B/swar-4 495414222 2.695 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/512B/simd-4 416022542 3.035 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/512B/swar-4 86736036 13.81 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/4096B/simd-4 83493616 14.34 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/4096B/swar-4 10722051 111.5 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/8B/simd-4 439797753 2.791 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/8B/swar-4 703020348 1.906 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/32B/simd-4 553221441 2.191 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/32B/swar-4 513505750 2.155 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/64B/simd-4 551378994 2.185 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/64B/swar-4 379643779 3.180 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/512B/simd-4 352317170 3.404 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/512B/swar-4 64683924 18.57 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/4096B/simd-4 68396660 17.57 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/4096B/swar-4 8100442 146.6 ns/op 0 B/op 0 allocs/op
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Documentation
¶
Index ¶
- Constants
- func AddTrailingSlashBytes(b []byte) []byte
- func AddTrailingSlashString(s string) string
- func AppendDuration(dst []byte, d time.Duration) []byte
- func AppendHTTPDate(dst []byte, t time.Time) []byte
- func AppendInt(dst []byte, n int64) []byte
- func AppendJSONString[S byteSeq](dst []byte, s S) []byte
- func AppendPathEscape[S byteSeq](dst []byte, s S) []byte
- func AppendPathSegmentsEscape[S byteSeq](dst []byte, s S) []byte
- func AppendPathUnescape[S byteSeq](dst []byte, s S) ([]byte, error)
- func AppendQueryEscape[S byteSeq](dst []byte, s S) []byte
- func AppendQueryUnescape[S byteSeq](dst []byte, s S) ([]byte, error)
- func AppendUint(dst []byte, n uint64) []byte
- func ByteSize(bytes uint64) string
- func CanonicalHeaderKey[S byteSeq](key S) S
- func ContainsFold[S byteSeq](s S, needle string) bool
- func ConvertToBytes(humanReadableString string) int
- func CopyBytes(b []byte) []byte
- func CopyString(s string) string
- func CutByte[S byteSeq](s S, sep byte) (before, after S, found bool)
- func EqualFold[S byteSeq](b, s S) bool
- func FormatHTTPDate(t time.Time) string
- func FormatInt(n int64) string
- func FormatInt8(n int8) string
- func FormatInt16(n int16) string
- func FormatInt32(n int32) string
- func FormatUint(n uint64) string
- func FormatUint8(n uint8) string
- func FormatUint16(n uint16) string
- func FormatUint32(n uint32) string
- func FunctionName(fn any) string
- func GenerateSecureToken(length int) string
- func GetArgument(arg string) bool
- func GetMIME(extension string) string
- func HasPrefixFold[S byteSeq](s S, prefix string) bool
- func HasSuffixFold[S byteSeq](s S, suffix string) bool
- func HashFold[S byteSeq](s S) uint64
- func IncrementIPRange(ip net.IP)
- func IndexAny2[S byteSeq](s S, a, b byte) int
- func IndexAny3[S byteSeq](s S, a, b, c byte) int
- func IndexControl[S byteSeq](s S) int
- func IndexControlExceptTab[S byteSeq](s S) int
- func IndexFold[S byteSeq](s S, needle string) int
- func IndexNonQuotable[S byteSeq](s S) int
- func IsASCII[S byteSeq](s S) bool
- func IsIPv4(s string) bool
- func IsIPv6(s string) bool
- func LastCutByte[S byteSeq](s S, sep byte) (before, after S, found bool)
- func ParseFloat32[S byteSeq](s S) (float32, error)
- func ParseFloat64[S byteSeq](s S) (float64, error)
- func ParseHTTPDate[S byteSeq](s S) (time.Time, error)
- func ParseIPv4[S byteSeq](s S) (netip.Addr, bool)
- func ParseIPv6[S byteSeq](s S) (netip.Addr, bool)
- func ParseInt[S byteSeq](s S) (int64, error)
- func ParseInt8[S byteSeq](s S) (int8, error)
- func ParseInt16[S byteSeq](s S) (int16, error)
- func ParseInt32[S byteSeq](s S) (int32, error)
- func ParseNativeInt[S byteSeq](s S) (int, error)
- func ParseNativeUint[S byteSeq](s S) (uint, error)
- func ParseUint[S byteSeq](s S) (uint64, error)
- func ParseUint8[S byteSeq](s S) (uint8, error)
- func ParseUint16[S byteSeq](s S) (uint16, error)
- func ParseUint32[S byteSeq](s S) (uint32, error)
- func ParseVendorSpecificContentType(cType string, caseInsensitive ...bool) string
- func ReadFile(path string, fs http.FileSystem) ([]byte, error)
- func SecureToken() string
- func SplitHostPort[S byteSeq](hostport S) (host, port S, ok bool)
- func SplitTrimSeq[S byteSeq](s S, sep byte) iter.Seq[S]
- func StartTimeStampUpdater()
- func StatusMessage(status int) string
- func StopTimeStampUpdater()
- func Timestamp() uint32
- func ToLower(b string) stringdeprecated
- func ToLowerBytes(b []byte) []bytedeprecated
- func ToString(arg any, timeFormat ...string) string
- func ToUpper(b string) stringdeprecated
- func ToUpperBytes(b []byte) []bytedeprecated
- func Trim[S byteSeq](s S, cutset byte) S
- func TrimLeft[S byteSeq](s S, cutset byte) S
- func TrimRight[S byteSeq](s S, cutset byte) S
- func TrimSpace[S byteSeq](s S) S
- func UUID() string
- func UUIDv4() string
- func UnsafeBytes(s string) []byte
- func UnsafeString(b []byte) string
- func Walk(fs http.FileSystem, root string, walkFn filepath.WalkFunc) error
- type CBORMarshal
- type CBORUnmarshal
- type JSONMarshal
- type JSONUnmarshal
- type MsgPackMarshal
- type MsgPackUnmarshal
- type Signed
- type Unsigned
- type XMLMarshal
- type XMLUnmarshal
Constants ¶
const MIMEOctetStream = "application/octet-stream"
Variables ¶
This section is empty.
Functions ¶
func AddTrailingSlashBytes ¶
AddTrailingSlashBytes appends a trailing '/' to b if it does not already end with one. If the input already ends with '/', the original slice is returned. A new slice is returned when a '/' is appended. The original slice is never modified.
func AddTrailingSlashString ¶
AddTrailingSlashString appends a trailing '/' to s if it does not already end with one. If the input already ends with '/', the original string is returned. A new string is returned only when a '/' needs to be appended.
func AppendDuration ¶ added in v2.5.0
AppendDuration appends d formatted exactly like time.Duration.String to dst and returns the extended slice, without the string allocation.
func AppendHTTPDate ¶ added in v2.4.0
AppendHTTPDate appends t in the RFC 9110 preferred HTTP date format ("Mon, 02 Jan 2006 15:04:05 GMT", net/http.TimeFormat) to dst and returns the extended slice. The output is byte-identical to t.UTC().AppendFormat(dst, http.TimeFormat) and always 29 bytes for the years 0..9999 that HTTP dates can represent; times outside that range delegate to time.AppendFormat.
func AppendJSONString ¶ added in v2.4.0
AppendJSONString appends s to dst as a double-quoted JSON string and returns the extended slice. The output is byte-identical to encoding/json.Marshal of the same string value, including its default HTML escaping: '"' and '\\' get backslash escapes; control bytes below 0x20 become \b, \f, \n, \r, \t, or \u00XX; '<', '>', '&' become \u00XX; each invalid UTF-8 byte becomes the six literal characters \ufffd; and the line separators U+2028/U+2029 become the \u2028 and \u2029 escapes. Go 1.27's json/v2 writes that replacement raw, so for invalid UTF-8 the two encodings differ from 1.27 on; both still decode to the same string. All other bytes, including multi-byte UTF-8 sequences, are copied verbatim. dst must not alias s: the output is longer than the input (at minimum by the surrounding quotes), so in-place encoding is impossible and an aliased dst would overwrite bytes before they are read. Clean spans are located with a SWAR scan and copied wholesale, so typical log or header values cost one scan and one copy — with none of encoding/json.Marshal's reflection or allocation.
func AppendPathEscape ¶ added in v2.4.0
AppendPathEscape appends the percent-encoded path-segment form of s to dst and returns the extended slice. The output is byte-identical to net/url.PathEscape; the aliasing rule matches AppendQueryEscape.
func AppendPathSegmentsEscape ¶ added in v2.6.0
AppendPathSegmentsEscape appends the percent-encoded form of the multi-segment path s to dst and returns the extended slice. It escapes every segment as AppendPathEscape does but leaves the '/' between them, so the output matches escaping each segment separately and joining the results with '/'. Use it for a value whose slashes are separators; use AppendPathEscape for one segment, where a slash is data and has to be encoded. Empty and dot segments pass through unchanged, so clean or reject an untrusted value before appending it under a fixed prefix. The aliasing rule matches AppendQueryEscape.
func AppendPathUnescape ¶ added in v2.4.0
AppendPathUnescape appends the decoded form of the path component s to dst and returns the extended slice, decoding %XX and leaving '+' verbatim, exactly like net/url.PathUnescape. Error and aliasing behavior match AppendQueryUnescape.
func AppendQueryEscape ¶ added in v2.4.0
AppendQueryEscape appends the percent-encoded form of s to dst and returns the extended slice. The output is byte-identical to net/url.QueryEscape: unreserved bytes pass through, space becomes '+', everything else becomes %XX with uppercase hex. dst must not alias s: escaping can grow the input, so in-place operation is impossible.
func AppendQueryUnescape ¶ added in v2.4.0
AppendQueryUnescape appends the decoded form of the query component s to dst and returns the extended slice, converting '+' to space and %XX to the byte it encodes, exactly like net/url.QueryUnescape including its url.EscapeError values for malformed escapes. On error the returned slice is dst with its original length (its backing array may still have been reallocated by growth). Decoding never grows the input, so dst may be s[:0] on a common backing array to decode in place; any other overlap is invalid. Note that an in-place decode that fails has already overwritten the prefix of s before the malformed escape with decoded bytes — treat s as consumed once an in-place decode starts, error or not.
func AppendUint ¶
AppendUint appends the decimal string representation of n to dst.
func ByteSize ¶
ByteSize returns a human-readable byte string of the form 10M, 12.5K, and so forth. The unit that results in the smallest number greater than or equal to 1 is always chosen. Maximum supported input is math.MaxUint64 / 10 (≈ 1844674407370955161).
func CanonicalHeaderKey ¶ added in v2.4.0
func CanonicalHeaderKey[S byteSeq](key S) S
CanonicalHeaderKey returns the canonical form of the HTTP header key: the first letter and any letter following a hyphen upper-cased, the rest lower-cased. The output matches net/http.CanonicalHeaderKey byte for byte, including its guard: a key containing any byte outside the header token alphabet is returned unchanged. Unlike the stdlib it accepts byte slices as well as strings and allocates only when the key actually needs rewriting — already-canonical keys, the overwhelmingly common case on receive paths, are validated in one table pass and returned as-is without the stdlib's canonical-key cache lookup.
func ContainsFold ¶ added in v2.1.2
ContainsFold reports whether s contains needle, ASCII case-insensitively.
func ConvertToBytes ¶
ConvertToBytes returns integer size of bytes from human-readable string, ex. 42kb, 42M Decimal units are powers of 1000 (42k = 42000); binary units with an 'i' infix are powers of 1024 (42Ki = 43008). Note that ByteSize formats with powers of 1024, so use binary suffixes for a lossless round-trip. The number may have a '+', a point and an exponent (1.5e3K), with any number of digits. The result is the exact product rounded down, capped at math.MaxInt. It is 0 if there is no number or it is negative or malformed; an unknown unit counts as bytes.
func CutByte ¶ added in v2.5.0
CutByte is strings.Cut/bytes.Cut for a single-byte separator, generic over strings and byte slices; a miss returns s, the zero S ("" or nil), and false. The parts alias s.
func EqualFold ¶
func EqualFold[S byteSeq](b, s S) bool
EqualFold tests ascii strings or bytes for equality case-insensitively
func FormatHTTPDate ¶ added in v2.4.0
FormatHTTPDate returns t in the RFC 9110 preferred HTTP date format, equal to t.UTC().Format(http.TimeFormat) with a single allocation for the result.
func FormatInt ¶
FormatInt formats an int64 as a decimal string. It is faster than strconv.FormatInt for most inputs.
func FormatInt16 ¶
FormatInt16 formats an int16 as a decimal string.
func FormatInt32 ¶
FormatInt32 formats an int32 as a decimal string.
func FormatUint ¶
FormatUint formats a uint64 as a decimal string. It is faster than strconv.FormatUint for most inputs.
func FormatUint8 ¶
FormatUint8 formats a uint8 as a decimal string.
func FormatUint16 ¶
FormatUint16 formats a uint16 as a decimal string.
func FormatUint32 ¶
FormatUint32 formats a uint32 as a decimal string.
func GenerateSecureToken ¶
GenerateSecureToken generates a cryptographically secure random token encoded in base64. It uses crypto/rand for randomness and base64.RawURLEncoding for URL-safe output. If length is less than or equal to 0, it defaults to 32 bytes (256 bits of entropy). Panics if the random source fails.
func GetMIME ¶
GetMIME returns the media type of a file extension without parameters, matched case-insensitively with or without the leading dot. Unknown extensions map to MIMEOctetStream; an empty extension yields an empty string.
func HasPrefixFold ¶ added in v2.2.0
HasPrefixFold reports whether s begins with prefix, ASCII case-insensitively: only 'A'..'Z'/'a'..'z' fold, every other byte (including >= 0x80) must match exactly, mirroring IndexFold. An empty prefix matches any s. Like the other Fold helpers the needle is a plain string, since call sites pass constant tokens.
func HasSuffixFold ¶ added in v2.2.0
HasSuffixFold reports whether s ends with suffix, ASCII case-insensitively, under the same folding contract as HasPrefixFold. An empty suffix matches any s.
func HashFold ¶ added in v2.6.1
func HashFold[S byteSeq](s S) uint64
HashFold returns a 64-bit hash of s in which ASCII letters are folded to one case: strings that EqualFold reports equal hash equal. It is the hashing half of a case-insensitive lookup table whose other half is EqualFold, for keys such as header or field names, and reads s a word at a time without writing a folded copy of it anywhere. As in EqualFold, only 'A'..'Z' and 'a'..'z' fold; every other byte, including those >= 0x80, hashes as is.
It is not a cryptographic hash, and it takes no seed, so it offers no protection against collisions planned in advance: use it to index keys of the program's own, such as the fields of a struct, and not to store keys an attacker picks. Its values may change between releases; do not persist them.
func IncrementIPRange ¶
IncrementIPRange Find available next IP address
func IndexAny2 ¶ added in v2.1.2
IndexAny2 returns the index of the first occurrence in s of either a or b, or -1 if neither is present. On amd64 CPUs with AVX2, inputs of 32+ bytes dispatch to package simd instead.
func IndexAny3 ¶ added in v2.1.2
IndexAny3 returns the index of the first occurrence in s of a, b, or c, or -1 if none is present. On amd64 CPUs with AVX2, inputs of 32+ bytes dispatch to package simd instead.
func IndexControl ¶ added in v2.5.0
func IndexControl[S byteSeq](s S) int
IndexControl returns the index of the first ASCII control byte in s (below 0x20 or DEL, the RFC 5234 CTL set), or -1. HTAB counts as a control byte; bytes >= 0x80 never match, unlike unicode.IsControl's C1 range.
func IndexControlExceptTab ¶ added in v2.5.0
func IndexControlExceptTab[S byteSeq](s S) int
IndexControlExceptTab is IndexControl with HTAB permitted: the bytes an RFC 9110 field value may not contain.
func IndexFold ¶ added in v2.1.2
IndexFold returns the index of the first ASCII case-insensitive occurrence of needle in s, or -1 if absent. An empty needle matches at index 0. Only 'A'..'Z'/'a'..'z' fold; every other byte (including >= 0x80) must match exactly, so e.g. "no\rcache" does NOT match the needle "no-cache". The needle is a plain string by design: call sites pass constant tokens, and a []byte needle would cost its callers a conversion either way.
func IndexNonQuotable ¶ added in v2.1.2
func IndexNonQuotable[S byteSeq](s S) int
IndexNonQuotable returns the index of the first byte of s that cannot appear verbatim inside an RFC 9110 quoted-string — that is, a byte matching c == '\\' || c == '"' || (c < 0x20 && c != '\t') || c == 0x7f — or -1 if every byte is quotable. qdtext is HTAB / SP / %x21 / %x23-5B / %x5D-7E / obs-text, so HTAB and bytes >= 0x80 are quotable. Returning the index (rather than a bool) lets callers copy the clean prefix and start escaping exactly at the offending byte. Inputs of 8+ bytes finish with one overlapping word at n-8, shorter ones byte-wise.
func IsASCII ¶ added in v2.1.2
func IsASCII[S byteSeq](s S) bool
IsASCII reports whether s contains only ASCII bytes (no byte >= 0x80). It ORs four words per iteration where possible (no index is needed, so detection can be deferred to one test per 32 bytes), then two, then word-wise; inputs of 8+ bytes finish with one overlapping word at n-8, shorter ones byte-wise. On amd64 CPUs with AVX2, inputs of 32+ bytes dispatch to package simd instead.
The unrolled loops pin their group of words with a reslice and load at constant offsets inside it. swar.Load8's own reslice is bounds-checked against the backing array, which the length-based loop condition does not imply, so a variable index costs a compare and a branch per load; pinning the window pays that once per group instead. This mirrors simd.isASCIIGeneric — the same scan, kept in step so a retune of either is a retune of both.
func IsIPv4 ¶
IsIPv4 reports whether s is a dotted-decimal IPv4 address. It accepts exactly what net.ParseIP accepts for the IPv4 case, without the net.IP slice, so it makes no allocations. It is the validate-only spelling of ParseIPv4, which accepts the same strings and also returns the address.
func IsIPv6 ¶
IsIPv6 reports whether s is an IPv6 address. It accepts exactly what net.ParseIP accepts for the IPv6 case, without the net.IP slice, so it makes no allocations. That excludes a "%zone" suffix, because net.ParseIP rejects zones.
ParseIPv6 follows netip.ParseAddr instead and does accept zones, so the two disagree on zoned input by design. Callers relying on IsIPv6 to reject zones must screen '%' themselves before substituting ParseIPv6.
func LastCutByte ¶ added in v2.5.0
LastCutByte is CutByte around the last occurrence of sep.
func ParseFloat32 ¶
ParseFloat32 is ParseFloat64 for float32, rounded once from the decimal.
func ParseFloat64 ¶
ParseFloat64 parses a decimal ASCII string or byte slice into the float64 that strconv.ParseFloat returns, bit for bit. Only a sign, digits, a point and an exponent are accepted; inf, nan, hex floats and underscores are syntax errors. It returns (0, error) on error and on overflow, where strconv returns ±Inf.
func ParseHTTPDate ¶ added in v2.4.0
ParseHTTPDate parses an HTTP date the way net/http.ParseTime does: the RFC 9110 preferred format ("Mon, 02 Jan 2006 15:04:05 GMT") plus the obsolete RFC 850 and ANSI C asctime forms, with surrounding ASCII whitespace tolerated. Canonical preferred-format input takes a fast scalar path that never calls time.Parse; every other input — legacy formats, unusual casing, non-GMT zone names, padding — falls back to time.Parse with byte-for-byte stdlib semantics, including its errors. The returned time is in time.UTC on the fast path and whatever time.Parse yields on the fallback; the instants agree in both cases.
func ParseIPv4 ¶ added in v2.4.0
ParseIPv4 parses a dotted-decimal IPv4 address into a netip.Addr. It accepts exactly the IPv4 strings netip.ParseAddr does — four octets 0-255, no leading zeros, nothing before or after — and reports ok=false for everything else, including IPv6 forms. It never allocates, so []byte callers skip both the string conversion and netip's error construction.
IsIPv4 is the validate-only counterpart; it accepts the same strings.
func ParseIPv6 ¶ added in v2.4.0
ParseIPv6 parses an IPv6 address into a netip.Addr. It accepts exactly the IPv6 strings netip.ParseAddr does — 16-bit hex fields, one optional "::", an optional embedded dotted-decimal IPv4 tail, and an optional non-empty "%zone" suffix — and reports ok=false for everything else, including plain IPv4 forms (use ParseIPv4 for those). The parse itself never allocates; only a present zone is materialized as a string because netip.Addr stores zones as strings.
IsIPv6 is the validate-only counterpart, but it follows net.ParseIP, which rejects zones. The two therefore disagree on zoned input by design: prefer ParseIPv6 when a zone is acceptable, IsIPv6 when it is not.
func ParseInt ¶
ParseInt parses a decimal ASCII string or byte slice into an int64. Returns the parsed value and nil on success, else 0 and an error.
func ParseInt16 ¶
ParseInt16 parses a decimal ASCII string or byte slice into an int16.
func ParseInt32 ¶
ParseInt32 parses a decimal ASCII string or byte slice into an int32.
func ParseNativeInt ¶ added in v2.1.0
ParseNativeInt parses a decimal ASCII string or byte slice into an int.
func ParseNativeUint ¶ added in v2.1.0
ParseNativeUint parses a decimal ASCII string or byte slice into a uint.
func ParseUint ¶
ParseUint parses a decimal ASCII string or byte slice into a uint64. It returns the parsed value and nil on success. If the input contains non-digit characters, it returns 0 and an error.
func ParseUint8 ¶
ParseUint8 parses a decimal ASCII string or byte slice into a uint8.
func ParseUint16 ¶
ParseUint16 parses a decimal ASCII string or byte slice into a uint16.
func ParseUint32 ¶
ParseUint32 parses a decimal ASCII string or byte slice into a uint32.
func ParseVendorSpecificContentType ¶
ParseVendorSpecificContentType check if content type is vendor specific and if it is parsable to any known types. If its not vendor specific then returns the original content type.
func ReadFile ¶
func ReadFile(path string, fs http.FileSystem) ([]byte, error)
ReadFile returns the raw content of a file
func SecureToken ¶
func SecureToken() string
SecureToken generates a secure token with 32 bytes of entropy. Panics if the random source fails. See GenerateSecureToken for details.
func SplitHostPort ¶ added in v2.5.0
func SplitHostPort[S byteSeq](hostport S) (host, port S, ok bool)
SplitHostPort splits "host:port", "[host]:port", and their %zone forms with net.SplitHostPort's exact rules, reporting failure as ok == false instead of a *net.AddrError; it accepts byte slices as well as strings, and the parts alias hostport.
func SplitTrimSeq ¶ added in v2.5.0
SplitTrimSeq iterates over the sep-separated elements of s with ASCII whitespace trimmed and empty elements skipped, as HTTP list fields are read (RFC 9110 Section 5.6.1); the elements alias s.
func StartTimeStampUpdater ¶
func StartTimeStampUpdater()
StartTimeStampUpdater launches a background goroutine that updates the cached timestamp every second. It is safe to call multiple times and from multiple goroutines; only one updater runs at a time.
func StatusMessage ¶
StatusMessage returns the correct message for the provided HTTP statuscode
func StopTimeStampUpdater ¶
func StopTimeStampUpdater()
StopTimeStampUpdater stops the background updater goroutine. Call this on app shutdown to avoid leaking goroutines. It is safe to call multiple times and from multiple goroutines.
func Timestamp ¶
func Timestamp() uint32
Timestamp returns the current cached Unix timestamp (seconds). Call StartTimeStampUpdater() once at app startup for best performance.
func ToLower
deprecated
ToLower converts ascii string to lower-case.
Deprecated: use github.com/gofiber/utils/v2/strings.ToLower instead.
func ToLowerBytes
deprecated
ToLowerBytes converts an ASCII byte slice to lower-case in-place.
Deprecated: use github.com/gofiber/utils/v2/bytes.UnsafeToLower instead. This wrapper keeps backward compatibility by mutating the provided slice.
func ToUpper
deprecated
ToUpper converts ascii string to upper-case.
Deprecated: use github.com/gofiber/utils/v2/strings.ToUpper instead.
func ToUpperBytes
deprecated
ToUpperBytes converts an ASCII byte slice to upper-case in-place.
Deprecated: use github.com/gofiber/utils/v2/bytes.UnsafeToUpper instead. This wrapper keeps backward compatibility by mutating the provided slice.
func Trim ¶
func Trim[S byteSeq](s S, cutset byte) S
Trim removes all leading and trailing occurrences of the byte cutset from s. Unlike strings/bytes.Trim, cutset is a single byte, not a set of characters.
func TrimLeft ¶
func TrimLeft[S byteSeq](s S, cutset byte) S
TrimLeft removes all leading occurrences of the byte cutset from s. Unlike strings/bytes.TrimLeft, cutset is a single byte, not a set of characters.
func TrimRight ¶
func TrimRight[S byteSeq](s S, cutset byte) S
TrimRight removes all trailing occurrences of the byte cutset from s. Unlike strings/bytes.TrimRight, cutset is a single byte, not a set of characters.
func TrimSpace ¶
func TrimSpace[S byteSeq](s S) S
TrimSpace removes leading and trailing whitespace from a string or byte slice. This is an optimized version that's faster than strings/bytes.TrimSpace for ASCII strings. It removes the following ASCII whitespace characters: space, tab, newline, carriage return, vertical tab, and form feed.
func UUID ¶
func UUID() string
UUID generates an universally unique identifier (UUID). This is an alias for UUIDv4 for backward compatibility.
func UUIDv4 ¶
func UUIDv4() string
UUIDv4 returns a Random (Version 4) UUID. The strength of the UUIDs is based on the strength of the crypto/rand package.
func UnsafeBytes ¶
UnsafeBytes returns a byte pointer without allocation.
func UnsafeString ¶
UnsafeString returns a string pointer without allocation
Types ¶
type CBORMarshal ¶
CBORMarshal returns the CBOR encoding of v.
type CBORUnmarshal ¶
CBORUnmarshal parses the CBOR-encoded data and stores the result in the value pointed to by v. If v is nil or not a pointer, Unmarshal returns an error.
type JSONMarshal ¶
JSONMarshal returns the JSON encoding of v.
type JSONUnmarshal ¶
JSONUnmarshal parses the JSON-encoded data and stores the result in the value pointed to by v. If v is nil or not a pointer, Unmarshal returns an InvalidUnmarshalError.
type MsgPackMarshal ¶
MsgPackMarshal returns the MsgPack encoding of v.
type MsgPackUnmarshal ¶
MsgPackUnmarshal parses the MsgPack-encoded data and stores the result in the value pointed to by v. If v is nil or not a pointer, Unmarshal returns an InvalidUnmarshalError.
type XMLMarshal ¶
XMLMarshal returns the XML encoding of v.
type XMLUnmarshal ¶
XMLUnmarshal parses the XML-encoded data and stores the result in the value pointed to by v. If v is nil or not a pointer, Unmarshal returns an InvalidUnmarshalError.
Source Files
¶
Directories
¶
| Path | Synopsis |
|---|---|
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internal
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Package simd provides SIMD-accelerated byte searching and validation primitives for the Fiber ecosystem: multi-needle scans, character-class scans, paired-byte scans, substring search, and ASCII validation.
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Package simd provides SIMD-accelerated byte searching and validation primitives for the Fiber ecosystem: multi-needle scans, character-class scans, paired-byte scans, substring search, and ASCII validation. |
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Package swar provides SWAR (SIMD within a register) primitives for processing eight ASCII bytes per uint64 word.
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Package swar provides SWAR (SIMD within a register) primitives for processing eight ASCII bytes per uint64 word. |