From 38951777fcbb5242ca276b4453fdf8f0f7f8477b Mon Sep 17 00:00:00 2001
From: Evan Chen <evanchen@kumoly.io>
Date: Thu, 11 Nov 2021 11:02:53 +0800
Subject: [PATCH] update

---
 README.md    |  3 +++
 go.mod       |  3 +++
 stat.go      | 26 ++++++++++++++++++++++++++
 stat_test.go | 18 ++++++++++++++++++
 4 files changed, 50 insertions(+)
 create mode 100644 README.md
 create mode 100644 go.mod
 create mode 100644 stat.go
 create mode 100644 stat_test.go

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a64d915
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# stat
+
+get simple stat for current go command and stat of a pid
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..2554adb
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module kumoly.io/lib/stat
+
+go 1.17
diff --git a/stat.go b/stat.go
new file mode 100644
index 0000000..b384591
--- /dev/null
+++ b/stat.go
@@ -0,0 +1,26 @@
+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
+}
diff --git a/stat_test.go b/stat_test.go
new file mode 100644
index 0000000..9dceed5
--- /dev/null
+++ b/stat_test.go
@@ -0,0 +1,18 @@
+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())
+}