update

README.md

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+# stat
+
+get simple stat for current go command and stat of a pid

go.mod

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+module kumoly.io/lib/stat
+
+go 1.17

stat.go

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+package stat
+
+import "runtime"
+
+type Profile struct {
+	Alloc      uint64
+	TotalAlloc uint64
+	SysMem     uint64
+	NumGC      uint32
+}
+
+func GetProfile() *Profile {
+	var m runtime.MemStats
+	runtime.ReadMemStats(&m)
+
+	return &Profile{
+		Alloc:      bToMb(m.Alloc),
+		TotalAlloc: bToMb(m.TotalAlloc),
+		SysMem:     bToMb(m.Sys),
+		NumGC:      m.NumGC,
+	}
+}
+
+func bToMb(b uint64) uint64 {
+	return b / 1024 / 1024
+}

stat_test.go

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+package stat
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestStat(t *testing.T) {
+	fmt.Printf("%+v\n", GetProfile())
+	buf := make([][]int, 1024)
+	for i := range buf {
+		buf[i] = make([]int, 1024)
+		for j := 0; j < len(buf[i]); j++ {
+			buf[i][j] = 20
+		}
+	}
+	fmt.Printf("%+v\n", GetProfile())
+}