diff options
Diffstat (limited to 'vendor/github.com/rcrowley/go-metrics/debug.go')
-rw-r--r-- | vendor/github.com/rcrowley/go-metrics/debug.go | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/vendor/github.com/rcrowley/go-metrics/debug.go b/vendor/github.com/rcrowley/go-metrics/debug.go deleted file mode 100644 index 043ccefab..000000000 --- a/vendor/github.com/rcrowley/go-metrics/debug.go +++ /dev/null @@ -1,76 +0,0 @@ -package metrics - -import ( - "runtime/debug" - "time" -) - -var ( - debugMetrics struct { - GCStats struct { - LastGC Gauge - NumGC Gauge - Pause Histogram - //PauseQuantiles Histogram - PauseTotal Gauge - } - ReadGCStats Timer - } - gcStats debug.GCStats -) - -// Capture new values for the Go garbage collector statistics exported in -// debug.GCStats. This is designed to be called as a goroutine. -func CaptureDebugGCStats(r Registry, d time.Duration) { - for _ = range time.Tick(d) { - CaptureDebugGCStatsOnce(r) - } -} - -// Capture new values for the Go garbage collector statistics exported in -// debug.GCStats. This is designed to be called in a background goroutine. -// Giving a registry which has not been given to RegisterDebugGCStats will -// panic. -// -// Be careful (but much less so) with this because debug.ReadGCStats calls -// the C function runtime·lock(runtime·mheap) which, while not a stop-the-world -// operation, isn't something you want to be doing all the time. -func CaptureDebugGCStatsOnce(r Registry) { - lastGC := gcStats.LastGC - t := time.Now() - debug.ReadGCStats(&gcStats) - debugMetrics.ReadGCStats.UpdateSince(t) - - debugMetrics.GCStats.LastGC.Update(int64(gcStats.LastGC.UnixNano())) - debugMetrics.GCStats.NumGC.Update(int64(gcStats.NumGC)) - if lastGC != gcStats.LastGC && 0 < len(gcStats.Pause) { - debugMetrics.GCStats.Pause.Update(int64(gcStats.Pause[0])) - } - //debugMetrics.GCStats.PauseQuantiles.Update(gcStats.PauseQuantiles) - debugMetrics.GCStats.PauseTotal.Update(int64(gcStats.PauseTotal)) -} - -// Register metrics for the Go garbage collector statistics exported in -// debug.GCStats. The metrics are named by their fully-qualified Go symbols, -// i.e. debug.GCStats.PauseTotal. -func RegisterDebugGCStats(r Registry) { - debugMetrics.GCStats.LastGC = NewGauge() - debugMetrics.GCStats.NumGC = NewGauge() - debugMetrics.GCStats.Pause = NewHistogram(NewExpDecaySample(1028, 0.015)) - //debugMetrics.GCStats.PauseQuantiles = NewHistogram(NewExpDecaySample(1028, 0.015)) - debugMetrics.GCStats.PauseTotal = NewGauge() - debugMetrics.ReadGCStats = NewTimer() - - r.Register("debug.GCStats.LastGC", debugMetrics.GCStats.LastGC) - r.Register("debug.GCStats.NumGC", debugMetrics.GCStats.NumGC) - r.Register("debug.GCStats.Pause", debugMetrics.GCStats.Pause) - //r.Register("debug.GCStats.PauseQuantiles", debugMetrics.GCStats.PauseQuantiles) - r.Register("debug.GCStats.PauseTotal", debugMetrics.GCStats.PauseTotal) - r.Register("debug.ReadGCStats", debugMetrics.ReadGCStats) -} - -// Allocate an initial slice for gcStats.Pause to avoid allocations during -// normal operation. -func init() { - gcStats.Pause = make([]time.Duration, 11) -} |