ae9f97221a
* go-metrics: fork library and introduce ResettingTimer and InfluxDB reporter. * vendor: change nonsense/go-metrics to ethersphere/go-metrics * go-metrics: add tests. move ResettingTimer logic from reporter to type. * all, metrics: pull in metrics package in go-ethereum * metrics/test: make sure metrics are enabled for tests * metrics: apply gosimple rules * metrics/exp, internal/debug: init expvar endpoint when starting pprof server * internal/debug: tiny comment formatting fix
125 lines
2.0 KiB
Go
125 lines
2.0 KiB
Go
package metrics
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import (
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"fmt"
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"io/ioutil"
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"log"
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"sync"
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"testing"
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)
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const FANOUT = 128
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// Stop the compiler from complaining during debugging.
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var (
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_ = ioutil.Discard
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_ = log.LstdFlags
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)
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func BenchmarkMetrics(b *testing.B) {
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r := NewRegistry()
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c := NewRegisteredCounter("counter", r)
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g := NewRegisteredGauge("gauge", r)
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gf := NewRegisteredGaugeFloat64("gaugefloat64", r)
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h := NewRegisteredHistogram("histogram", r, NewUniformSample(100))
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m := NewRegisteredMeter("meter", r)
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t := NewRegisteredTimer("timer", r)
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RegisterDebugGCStats(r)
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RegisterRuntimeMemStats(r)
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b.ResetTimer()
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ch := make(chan bool)
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wgD := &sync.WaitGroup{}
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/*
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wgD.Add(1)
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go func() {
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defer wgD.Done()
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//log.Println("go CaptureDebugGCStats")
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for {
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select {
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case <-ch:
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//log.Println("done CaptureDebugGCStats")
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return
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default:
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CaptureDebugGCStatsOnce(r)
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}
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}
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}()
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//*/
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wgR := &sync.WaitGroup{}
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//*
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wgR.Add(1)
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go func() {
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defer wgR.Done()
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//log.Println("go CaptureRuntimeMemStats")
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for {
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select {
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case <-ch:
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//log.Println("done CaptureRuntimeMemStats")
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return
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default:
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CaptureRuntimeMemStatsOnce(r)
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}
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}
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}()
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//*/
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wgW := &sync.WaitGroup{}
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/*
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wgW.Add(1)
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go func() {
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defer wgW.Done()
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//log.Println("go Write")
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for {
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select {
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case <-ch:
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//log.Println("done Write")
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return
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default:
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WriteOnce(r, ioutil.Discard)
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}
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}
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}()
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//*/
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wg := &sync.WaitGroup{}
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wg.Add(FANOUT)
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for i := 0; i < FANOUT; i++ {
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go func(i int) {
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defer wg.Done()
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//log.Println("go", i)
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for i := 0; i < b.N; i++ {
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c.Inc(1)
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g.Update(int64(i))
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gf.Update(float64(i))
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h.Update(int64(i))
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m.Mark(1)
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t.Update(1)
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}
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//log.Println("done", i)
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}(i)
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}
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wg.Wait()
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close(ch)
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wgD.Wait()
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wgR.Wait()
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wgW.Wait()
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}
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func Example() {
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c := NewCounter()
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Register("money", c)
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c.Inc(17)
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// Threadsafe registration
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t := GetOrRegisterTimer("db.get.latency", nil)
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t.Time(func() {})
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t.Update(1)
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fmt.Println(c.Count())
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fmt.Println(t.Min())
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// Output: 17
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// 1
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}
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