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go-zero/core/prof/runtime.go

32 lines
682 B
Go

package prof
import (
"fmt"
"runtime"
"time"
)
const (
defaultInterval = time.Second * 5
mega = 1024 * 1024
)
// DisplayStats prints the goroutine, memory, GC stats with given interval, default to 5 seconds.
func DisplayStats(interval ...time.Duration) {
duration := defaultInterval
for _, val := range interval {
duration = val
}
go func() {
ticker := time.NewTicker(duration)
defer ticker.Stop()
for range ticker.C {
var m runtime.MemStats
runtime.ReadMemStats(&m)
fmt.Printf("Goroutines: %d, Alloc: %vm, TotalAlloc: %vm, Sys: %vm, NumGC: %v\n",
runtime.NumGoroutine(), m.Alloc/mega, m.TotalAlloc/mega, m.Sys/mega, m.NumGC)
}
}()
}