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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| package timer | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "runtime" | ||
| "time" | ||
|
|
||
| "github.com/flanksource/commons/duration" | ||
| "github.com/flanksource/commons/logger" | ||
| "github.com/flanksource/commons/text" | ||
| "github.com/shirou/gopsutil/v3/process" | ||
| ) | ||
|
|
||
| type MemoryTimer struct { | ||
| startTime time.Time | ||
| start *runtime.MemStats | ||
| process *process.Process | ||
| peakRss int64 | ||
| } | ||
|
|
||
| func age(d time.Duration) string { | ||
| if d.Milliseconds() == 0 { | ||
| return "0ms" | ||
| } | ||
| if d.Milliseconds() < 1000 { | ||
| return fmt.Sprintf("%0.dms", d.Milliseconds()) | ||
| } | ||
|
|
||
| return duration.Duration(d).String() | ||
| } | ||
|
|
||
| func NewMemoryTimer() MemoryTimer { | ||
| m := MemoryTimer{startTime: time.Now()} | ||
| if logger.IsTraceEnabled() { | ||
| s := runtime.MemStats{} | ||
| runtime.ReadMemStats(&s) | ||
| m.start = &s | ||
| m.process, _ = process.NewProcess(int32(os.Getpid())) | ||
| } | ||
| return m | ||
| } | ||
|
|
||
| func (m *MemoryTimer) End() string { | ||
| d := age(time.Since(m.startTime)) | ||
| if m.start == nil { | ||
| return d | ||
| } | ||
|
|
||
| var rss int64 | ||
| if m.process != nil { | ||
| mem, _ := m.process.MemoryInfo() | ||
| rss = int64(mem.RSS) | ||
| if rss > m.peakRss { | ||
| m.peakRss = rss | ||
| } | ||
| } | ||
|
|
||
| end := runtime.MemStats{} | ||
| runtime.ReadMemStats(&end) | ||
| allocs := end.Mallocs - m.start.Mallocs | ||
| heap := end.HeapAlloc - m.start.HeapAlloc | ||
| totalheap := end.TotalAlloc - m.start.TotalAlloc | ||
| gc := end.NumGC - m.start.NumGC | ||
|
|
||
| return fmt.Sprintf( | ||
| "%s (allocs=%s, heap_allocs=%s heap_increase=%s, gc_count=%s rss=%s peak=%s)", | ||
| d, | ||
| text.HumanizeInt(allocs), | ||
| text.HumanizeBytes(totalheap), | ||
| text.HumanizeBytes(heap), | ||
| text.HumanizeInt(gc), | ||
| text.HumanizeBytes(rss), | ||
| text.HumanizeBytes(m.peakRss), | ||
| ) | ||
| } |