memstat.go

memstat.go

package main

import (
  "fmt"
  "runtime"
)

type Stats struct {
  name string
  value uint64
}

func PrintStats() {
  var m runtime.MemStats
  runtime.ReadMemStats(&m)
  stats := []Stats{
    {"Alloc", m.Alloc},
    {"TotalAlloc", m.TotalAlloc},
    {"Sys", m.Sys},
    {"Lookups", m.Lookups},
    {"Mallocs", m.Mallocs},
    {"HeapAlloc", m.HeapAlloc},
    {"HeapSys", m.HeapSys},
    {"HeapIdle", m.HeapIdle},
    {"HeapInuse", m.HeapInuse},
    {"HeapReleased", m.HeapReleased},
    {"HeapObjects", m.HeapObjects},
    {"StackInuse", m.StackInuse},
    {"StackSys", m.StackSys},
    {"MSpanInuse", m.MSpanInuse},
    {"MSpanSys", m.MSpanSys},
    {"MCacheInuse", m.MCacheInuse},
    {"MCacheSys", m.MCacheSys},
    {"BuckHashSys", m.BuckHashSys},
    {"GCSys", m.GCSys},
    {"OtherSys", m.OtherSys},
    {"NextGC", m.NextGC},
    {"LastGC", m.LastGC},
    {"PauseTotalNs", m.PauseTotalNs}, 
    {"NumGC", (uint64)(m.NumGC)},
  }
  for _, v := range stats {
    fmt.Printf("%-15s: %-10d\n", v.name, v.value)
  }
  fmt.Printf("%-15s: %-10t\n", "EnableGC", m.EnableGC)
  fmt.Printf("%-15s: %-10t\n", "DebugGC", m.DebugGC)
}

func main() {
  PrintStats()
}