Why Go
- Case Studies
  
  Common problems companies solve with Go
- Use Cases
  
  Stories about how and why companies use Go
- Security
  
  How Go can help keep you secure by default
Learn
Docs
- Effective Go
  
  Tips for writing clear, performant, and idiomatic Go code
- Go User Manual
  
  A complete introduction to building software with Go
- Standard library
  
  Reference documentation for Go's standard library
- Release Notes
  
  Learn what's new in each Go release
Packages
Community
- Recorded Talks
  
  Videos from prior events
- Meetups
  
  Meet other local Go developers
- Conferences
  
  Learn and network with Go developers from around the world
- Go blog
  
  The Go project's official blog.
- Go project
  
  Get help and stay informed from Go
- Get connected

simulator

package

Go to main page

Versions in this module

v1

v1.0.3

Jul 7, 2025

v1.0.2

Jul 7, 2025

Changes in this version

+ type StateEntry struct

+ Label string

+ Stats map[tracker.GoroutineId]*tracker.GoroutineStats

v1.0.1

Jul 7, 2025

Changes in this version

type StageStats

+ IsFinal bool

+ IsGenerator bool

v1.0.0

Jun 12, 2025

Changes in this version

+ type Simulator struct

+ Cancel context.CancelFunc

+ Ctx context.Context

+ Duration time.Duration

+ MaxGeneratedItems int

+ Mu sync.RWMutex

+ Quit chan struct{}

+ Stages []*Stage

+ Wg sync.WaitGroup

+ func NewSimulator() *Simulator

+ func (s *Simulator) AddStage(stage *Stage) error

+ func (s *Simulator) Done() <-chan struct{}

+ func (s *Simulator) GetStages() []*Stage

+ func (s *Simulator) PrintStats()

+ func (s *Simulator) Start() error

+ func (s *Simulator) Stop()

+ func (s *Simulator) WaitForStats()

+ type Stage struct

+ Config *StageConfig

+ IdleSpy *tracker.GoroutineManager

+ Input chan any

+ IsFinal bool

+ MaxGeneratedItems int

+ Metrics *StageMetrics

+ Name string

+ Output chan any

+ Sem chan struct{}

+ Stop func()

+ func NewStage(name string, config *StageConfig) *Stage

+ func (s *Stage) GetMetrics() *StageMetrics

+ func (s *Stage) Start(ctx context.Context, wg *sync.WaitGroup) error

+ func (s *Stage) StopOnce()

+ type StageConfig struct

+ BufferSize int

+ BurstCountTotal int

+ BurstInterval time.Duration

+ Ctx context.Context

+ DropOnBackpressure bool

+ InputBurst func() []any

+ InputRate time.Duration

+ IsGenerator bool

+ ItemGenerator func() any

+ RetryCount int

+ RoutineNum int

+ WorkerDelay time.Duration

+ WorkerFunc func(item any) (any, error)

+ func DefaultConfig() *StageConfig

+ type StageMetrics struct

+ DroppedItems uint64

+ EndTime time.Time

+ GeneratedItems uint64

+ OutputItems uint64

+ ProcessedItems uint64

+ StartTime time.Time

+ func NewStageMetrics() *StageMetrics

+ func (m *StageMetrics) GetStats() map[string]any

+ func (m *StageMetrics) RecordDropped()

+ func (m *StageMetrics) RecordDroppedBurst(items int)

+ func (m *StageMetrics) RecordGenerated()

+ func (m *StageMetrics) RecordGeneratedBurst(items int)

+ func (m *StageMetrics) RecordOutput()

+ func (m *StageMetrics) RecordProcessing()

+ func (m *StageMetrics) Stop()

+ type StageStats struct

+ DropRate float64

+ DroppedItems uint64

+ GeneratedItems uint64

+ OutputItems uint64

+ ProcDiffPct float64

+ ProcessedItems uint64

+ StageName string

+ Throughput float64

+ ThruDiffPct float64