sigx

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代码嵌入

package main

import (
	"github.com/bingoohuang/gg/pkg/sigx"
)

func init() {
	sigx.RegisterSignalProfile()
}

cpu.profile

1. start to collect cpu.profile touch jj.cpu; kill -USR1 69110
2. after some time, like 10 minutes, repeat above cmd to stop.
3. go tool pprof -http :9402 cpu.profile to view

or

1. start to collect cpu.profile in 5m echo 5m > jj.cpu; kill -USR1 69110
2. after 5 minutes, go tool pprof -http :9402 cpu.profile to view

mem.profile

1. collect mem.profile touch jj.mem; kill -USR1 6911
2. go tool pprof -http :9402 mem.profile to view

jj.profile

1. collect specified echo "cpu,heap,allocs,mutex,block,trace,threadcreate,goroutine,d:5m,rate:4096" > jj.profile
2. go tool pprof -http :9402 xx.pprof or go tool trace trace.out to view

Documentation

Index

• func CollectCpuProfile(cpuProfile string) (bool, error)
• func CollectMemProfile(memProfile string) error
• func HasCmd(f string, remove bool) bool
• func ReadCmd(f string) []byte
• func ReadCmdOK(f string, remove bool) ([]byte, bool)
• func RegisterSignalCallback(f func(), signals ...os.Signal)
• func RegisterSignalProfile(signals ...os.Signal)
• func RegisterSignals(c context.Context, signals ...os.Signal) (context.Context, context.CancelFunc)

Functions

func CollectCpuProfile

func CollectCpuProfile(cpuProfile string) (bool, error)

func CollectMemProfile

func CollectMemProfile(memProfile string) error

func HasCmd

func HasCmd(f string, remove bool) bool

func ReadCmd

func ReadCmd(f string) []byte

func ReadCmdOK

func ReadCmdOK(f string, remove bool) ([]byte, bool)

func RegisterSignalCallback

func RegisterSignalCallback(f func(), signals ...os.Signal)

func RegisterSignalProfile

func RegisterSignalProfile(signals ...os.Signal)

func RegisterSignals

func RegisterSignals(c context.Context, signals ...os.Signal) (context.Context, context.CancelFunc)

RegisterSignals registers signal handlers.