mirror of
https://github.com/octoleo/syncthing.git
synced 2024-11-10 07:11:08 +00:00
65aaa607ab
Change made by: - running "gvt fetch" on each of the packages mentioned in Godeps/Godeps.json - `rm -rf Godeps` - tweaking the build scripts to not mention Godeps - tweaking the build scripts to test `./lib/...`, `./cmd/...` explicitly (to avoid testing vendor) - tweaking the build scripts to not juggle GOPATH for Godeps and instead set GO15VENDOREXPERIMENT. This also results in some updated packages at the same time I bet. Building with Go 1.3 and 1.4 still *works* but won't use our vendored dependencies - the user needs to have the actual packages in their GOPATH then, which they'll get with a normal "go get". Building with Go 1.6+ will get our vendored dependencies by default even when not using our build script, which is nice. By doing this we gain some freedom in that we can pick and choose manually what to include in vendor, as it's not based on just dependency analysis of our own code. This is also a risk as we might pick up dependencies we are unaware of, as the build may work locally with those packages present in GOPATH. On the other hand the build server will detect this as it has no packages in it's GOPATH beyond what is included in the repo. Recommended tool to manage dependencies is github.com/FiloSottile/gvt.
213 lines
8.6 KiB
Go
213 lines
8.6 KiB
Go
package metrics
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import (
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"runtime"
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"runtime/pprof"
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"time"
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)
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var (
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memStats runtime.MemStats
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runtimeMetrics struct {
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MemStats struct {
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Alloc Gauge
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BuckHashSys Gauge
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DebugGC Gauge
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EnableGC Gauge
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Frees Gauge
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HeapAlloc Gauge
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HeapIdle Gauge
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HeapInuse Gauge
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HeapObjects Gauge
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HeapReleased Gauge
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HeapSys Gauge
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LastGC Gauge
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Lookups Gauge
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Mallocs Gauge
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MCacheInuse Gauge
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MCacheSys Gauge
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MSpanInuse Gauge
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MSpanSys Gauge
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NextGC Gauge
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NumGC Gauge
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GCCPUFraction GaugeFloat64
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PauseNs Histogram
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PauseTotalNs Gauge
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StackInuse Gauge
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StackSys Gauge
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Sys Gauge
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TotalAlloc Gauge
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}
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NumCgoCall Gauge
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NumGoroutine Gauge
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NumThread Gauge
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ReadMemStats Timer
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}
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frees uint64
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lookups uint64
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mallocs uint64
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numGC uint32
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numCgoCalls int64
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threadCreateProfile = pprof.Lookup("threadcreate")
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)
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// Capture new values for the Go runtime statistics exported in
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// runtime.MemStats. This is designed to be called as a goroutine.
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func CaptureRuntimeMemStats(r Registry, d time.Duration) {
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for _ = range time.Tick(d) {
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CaptureRuntimeMemStatsOnce(r)
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}
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}
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// Capture new values for the Go runtime statistics exported in
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// runtime.MemStats. This is designed to be called in a background
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// goroutine. Giving a registry which has not been given to
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// RegisterRuntimeMemStats will panic.
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//
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// Be very careful with this because runtime.ReadMemStats calls the C
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// functions runtime·semacquire(&runtime·worldsema) and runtime·stoptheworld()
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// and that last one does what it says on the tin.
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func CaptureRuntimeMemStatsOnce(r Registry) {
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t := time.Now()
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runtime.ReadMemStats(&memStats) // This takes 50-200us.
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runtimeMetrics.ReadMemStats.UpdateSince(t)
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runtimeMetrics.MemStats.Alloc.Update(int64(memStats.Alloc))
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runtimeMetrics.MemStats.BuckHashSys.Update(int64(memStats.BuckHashSys))
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if memStats.DebugGC {
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runtimeMetrics.MemStats.DebugGC.Update(1)
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} else {
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runtimeMetrics.MemStats.DebugGC.Update(0)
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}
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if memStats.EnableGC {
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runtimeMetrics.MemStats.EnableGC.Update(1)
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} else {
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runtimeMetrics.MemStats.EnableGC.Update(0)
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}
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runtimeMetrics.MemStats.Frees.Update(int64(memStats.Frees - frees))
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runtimeMetrics.MemStats.HeapAlloc.Update(int64(memStats.HeapAlloc))
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runtimeMetrics.MemStats.HeapIdle.Update(int64(memStats.HeapIdle))
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runtimeMetrics.MemStats.HeapInuse.Update(int64(memStats.HeapInuse))
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runtimeMetrics.MemStats.HeapObjects.Update(int64(memStats.HeapObjects))
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runtimeMetrics.MemStats.HeapReleased.Update(int64(memStats.HeapReleased))
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runtimeMetrics.MemStats.HeapSys.Update(int64(memStats.HeapSys))
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runtimeMetrics.MemStats.LastGC.Update(int64(memStats.LastGC))
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runtimeMetrics.MemStats.Lookups.Update(int64(memStats.Lookups - lookups))
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runtimeMetrics.MemStats.Mallocs.Update(int64(memStats.Mallocs - mallocs))
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runtimeMetrics.MemStats.MCacheInuse.Update(int64(memStats.MCacheInuse))
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runtimeMetrics.MemStats.MCacheSys.Update(int64(memStats.MCacheSys))
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runtimeMetrics.MemStats.MSpanInuse.Update(int64(memStats.MSpanInuse))
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runtimeMetrics.MemStats.MSpanSys.Update(int64(memStats.MSpanSys))
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runtimeMetrics.MemStats.NextGC.Update(int64(memStats.NextGC))
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runtimeMetrics.MemStats.NumGC.Update(int64(memStats.NumGC - numGC))
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runtimeMetrics.MemStats.GCCPUFraction.Update(gcCPUFraction(&memStats))
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// <https://code.google.com/p/go/source/browse/src/pkg/runtime/mgc0.c>
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i := numGC % uint32(len(memStats.PauseNs))
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ii := memStats.NumGC % uint32(len(memStats.PauseNs))
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if memStats.NumGC-numGC >= uint32(len(memStats.PauseNs)) {
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for i = 0; i < uint32(len(memStats.PauseNs)); i++ {
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runtimeMetrics.MemStats.PauseNs.Update(int64(memStats.PauseNs[i]))
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}
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} else {
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if i > ii {
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for ; i < uint32(len(memStats.PauseNs)); i++ {
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runtimeMetrics.MemStats.PauseNs.Update(int64(memStats.PauseNs[i]))
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}
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i = 0
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}
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for ; i < ii; i++ {
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runtimeMetrics.MemStats.PauseNs.Update(int64(memStats.PauseNs[i]))
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}
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}
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frees = memStats.Frees
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lookups = memStats.Lookups
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mallocs = memStats.Mallocs
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numGC = memStats.NumGC
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runtimeMetrics.MemStats.PauseTotalNs.Update(int64(memStats.PauseTotalNs))
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runtimeMetrics.MemStats.StackInuse.Update(int64(memStats.StackInuse))
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runtimeMetrics.MemStats.StackSys.Update(int64(memStats.StackSys))
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runtimeMetrics.MemStats.Sys.Update(int64(memStats.Sys))
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runtimeMetrics.MemStats.TotalAlloc.Update(int64(memStats.TotalAlloc))
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currentNumCgoCalls := numCgoCall()
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runtimeMetrics.NumCgoCall.Update(currentNumCgoCalls - numCgoCalls)
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numCgoCalls = currentNumCgoCalls
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runtimeMetrics.NumGoroutine.Update(int64(runtime.NumGoroutine()))
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runtimeMetrics.NumThread.Update(int64(threadCreateProfile.Count()))
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}
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// Register runtimeMetrics for the Go runtime statistics exported in runtime and
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// specifically runtime.MemStats. The runtimeMetrics are named by their
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// fully-qualified Go symbols, i.e. runtime.MemStats.Alloc.
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func RegisterRuntimeMemStats(r Registry) {
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runtimeMetrics.MemStats.Alloc = NewGauge()
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runtimeMetrics.MemStats.BuckHashSys = NewGauge()
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runtimeMetrics.MemStats.DebugGC = NewGauge()
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runtimeMetrics.MemStats.EnableGC = NewGauge()
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runtimeMetrics.MemStats.Frees = NewGauge()
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runtimeMetrics.MemStats.HeapAlloc = NewGauge()
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runtimeMetrics.MemStats.HeapIdle = NewGauge()
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runtimeMetrics.MemStats.HeapInuse = NewGauge()
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runtimeMetrics.MemStats.HeapObjects = NewGauge()
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runtimeMetrics.MemStats.HeapReleased = NewGauge()
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runtimeMetrics.MemStats.HeapSys = NewGauge()
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runtimeMetrics.MemStats.LastGC = NewGauge()
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runtimeMetrics.MemStats.Lookups = NewGauge()
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runtimeMetrics.MemStats.Mallocs = NewGauge()
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runtimeMetrics.MemStats.MCacheInuse = NewGauge()
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runtimeMetrics.MemStats.MCacheSys = NewGauge()
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runtimeMetrics.MemStats.MSpanInuse = NewGauge()
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runtimeMetrics.MemStats.MSpanSys = NewGauge()
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runtimeMetrics.MemStats.NextGC = NewGauge()
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runtimeMetrics.MemStats.NumGC = NewGauge()
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runtimeMetrics.MemStats.GCCPUFraction = NewGaugeFloat64()
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runtimeMetrics.MemStats.PauseNs = NewHistogram(NewExpDecaySample(1028, 0.015))
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runtimeMetrics.MemStats.PauseTotalNs = NewGauge()
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runtimeMetrics.MemStats.StackInuse = NewGauge()
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runtimeMetrics.MemStats.StackSys = NewGauge()
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runtimeMetrics.MemStats.Sys = NewGauge()
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runtimeMetrics.MemStats.TotalAlloc = NewGauge()
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runtimeMetrics.NumCgoCall = NewGauge()
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runtimeMetrics.NumGoroutine = NewGauge()
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runtimeMetrics.NumThread = NewGauge()
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runtimeMetrics.ReadMemStats = NewTimer()
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r.Register("runtime.MemStats.Alloc", runtimeMetrics.MemStats.Alloc)
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r.Register("runtime.MemStats.BuckHashSys", runtimeMetrics.MemStats.BuckHashSys)
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r.Register("runtime.MemStats.DebugGC", runtimeMetrics.MemStats.DebugGC)
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r.Register("runtime.MemStats.EnableGC", runtimeMetrics.MemStats.EnableGC)
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r.Register("runtime.MemStats.Frees", runtimeMetrics.MemStats.Frees)
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r.Register("runtime.MemStats.HeapAlloc", runtimeMetrics.MemStats.HeapAlloc)
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r.Register("runtime.MemStats.HeapIdle", runtimeMetrics.MemStats.HeapIdle)
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r.Register("runtime.MemStats.HeapInuse", runtimeMetrics.MemStats.HeapInuse)
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r.Register("runtime.MemStats.HeapObjects", runtimeMetrics.MemStats.HeapObjects)
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r.Register("runtime.MemStats.HeapReleased", runtimeMetrics.MemStats.HeapReleased)
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r.Register("runtime.MemStats.HeapSys", runtimeMetrics.MemStats.HeapSys)
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r.Register("runtime.MemStats.LastGC", runtimeMetrics.MemStats.LastGC)
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r.Register("runtime.MemStats.Lookups", runtimeMetrics.MemStats.Lookups)
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r.Register("runtime.MemStats.Mallocs", runtimeMetrics.MemStats.Mallocs)
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r.Register("runtime.MemStats.MCacheInuse", runtimeMetrics.MemStats.MCacheInuse)
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r.Register("runtime.MemStats.MCacheSys", runtimeMetrics.MemStats.MCacheSys)
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r.Register("runtime.MemStats.MSpanInuse", runtimeMetrics.MemStats.MSpanInuse)
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r.Register("runtime.MemStats.MSpanSys", runtimeMetrics.MemStats.MSpanSys)
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r.Register("runtime.MemStats.NextGC", runtimeMetrics.MemStats.NextGC)
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r.Register("runtime.MemStats.NumGC", runtimeMetrics.MemStats.NumGC)
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r.Register("runtime.MemStats.GCCPUFraction", runtimeMetrics.MemStats.GCCPUFraction)
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r.Register("runtime.MemStats.PauseNs", runtimeMetrics.MemStats.PauseNs)
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r.Register("runtime.MemStats.PauseTotalNs", runtimeMetrics.MemStats.PauseTotalNs)
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r.Register("runtime.MemStats.StackInuse", runtimeMetrics.MemStats.StackInuse)
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r.Register("runtime.MemStats.StackSys", runtimeMetrics.MemStats.StackSys)
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r.Register("runtime.MemStats.Sys", runtimeMetrics.MemStats.Sys)
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r.Register("runtime.MemStats.TotalAlloc", runtimeMetrics.MemStats.TotalAlloc)
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r.Register("runtime.NumCgoCall", runtimeMetrics.NumCgoCall)
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r.Register("runtime.NumGoroutine", runtimeMetrics.NumGoroutine)
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r.Register("runtime.NumThread", runtimeMetrics.NumThread)
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r.Register("runtime.ReadMemStats", runtimeMetrics.ReadMemStats)
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}
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