internal/

Package agg is the shared aggregation core: a concurrency-safe, bounded key→latency table with log2-bucket histograms for approximate percentiles.

Package generation provides atomic collector generation swaps.

Package health records collector degradation without making failures fatal to the instrumented application.

Package runctl owns the measurement run lifecycle: a single process-wide Controller decides when a run starts, when its boundaries are frozen, when its immutable snapshot may be published, and when it is aborted.

Package sysinfo resolves static host facts (CPU model, core count, total memory, OS) shown in every report so measurements are always attributable to the hardware they ran on.