Created
July 21, 2021 13:38
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| package badger | |
| import ( | |
| "fmt" | |
| "os" | |
| "path/filepath" | |
| "time" | |
| "github.com/montanaflynn/stats" | |
| ) | |
| func DirSize(path string) (int64, error) { | |
| var size int64 | |
| err := filepath.Walk(path, func(_ string, info os.FileInfo, err error) error { | |
| if err != nil { | |
| return err | |
| } | |
| if !info.IsDir() { | |
| size += info.Size() | |
| } | |
| return err | |
| }) | |
| return size, err | |
| } | |
| type timer struct { | |
| start time.Time | |
| lapStart time.Time | |
| laps []time.Duration | |
| lapCount int | |
| } | |
| func Timer() *timer { | |
| t := &timer{} | |
| t.Reset() | |
| return t | |
| } | |
| func (t *timer) Reset() { | |
| t.start = time.Now() | |
| t.lapStart = t.start | |
| t.laps = []time.Duration{} | |
| } | |
| func (t *timer) LapTime() { | |
| t.laps = append(t.laps, time.Since(t.lapStart)) | |
| t.lapStart = time.Now() | |
| } | |
| func (t *timer) Lap() { | |
| t.lapCount++ | |
| } | |
| func (t *timer) ReportLaps() { | |
| total := time.Since(t.lapStart) | |
| avgTime := total / time.Duration(t.lapCount) | |
| fmt.Printf("Laps=%d avgLapTime=%s avgLapRate=%.1f/s\n", t.lapCount, avgTime, 1/avgTime.Seconds()) | |
| t.lapStart = time.Now() | |
| t.lapCount = 0 | |
| } | |
| func (t *timer) Report(title string) { | |
| total := time.Since(t.start) | |
| var statsStr string | |
| if t.lapCount != 0 { | |
| statsStr = fmt.Sprintf(" laps=%d avgLapTime=%s", t.lapCount, total/time.Duration(t.lapCount)) | |
| } | |
| if len(t.laps) != 0 { | |
| data := make(stats.Float64Data, len(t.laps)) | |
| for i, lap := range t.laps { | |
| data[i] = lap.Seconds() | |
| } | |
| toDuration := func(value float64, _ error) time.Duration { | |
| return time.Duration(float64(time.Second) * value) | |
| } | |
| statsStr = fmt.Sprintf(" min=%s median=%s p95=%s max=%s", | |
| toDuration(stats.Min(data)), | |
| toDuration(stats.Median(data)), | |
| toDuration(stats.Percentile(data, 95)), | |
| toDuration(stats.Max(data)), | |
| ) | |
| } | |
| fmt.Printf("Timer %s: total=%s%s\n", title, total, statsStr) | |
| t.Reset() | |
| } |
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