google/gops: A tool to list and diagnose Go processes currently running on your ...

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开源软件名称：

google/gops

开源软件地址：

https://github.com/google/gops

开源编程语言：

Go 100.0%

开源软件介绍：

gops

gops is a command to list and diagnose Go processes currently running on your system.

$ gops
983   980    uplink-soecks  go1.9   /usr/local/bin/uplink-soecks
52697 52695  gops           go1.10  /Users/jbd/bin/gops
4132  4130   foops        * go1.9   /Users/jbd/bin/foops
51130 51128  gocode         go1.9.2 /Users/jbd/bin/gocode

Installation

To install the latest version of gops:

$ go get github.com/google/gops

$ go install github.com/google/gops@latest

To install a specific gops version, for example v0.3.19:

$ go install github.com/google/[email protected]

Diagnostics

For processes that start the diagnostics agent, gops can report additional information such as the current stack trace, Go version, memory stats, etc.

In order to start the diagnostics agent, see the hello example.

package main

import (
	"log"
	"time"

	"github.com/google/gops/agent"
)

func main() {
	if err := agent.Listen(agent.Options{}); err != nil {
		log.Fatal(err)
	}
	time.Sleep(time.Hour)
}

Otherwise, you could set GOPS_CONFIG_DIR environment variables to assign your config dir. Default, gops will use the current user's home directory(AppData on windows).

Manual

It is possible to use gops tool both in local and remote mode.

Local mode requires that you start the target binary as the same user that runs gops binary. To use gops in a remote mode you need to know target's agent address.

In Local mode use process's PID as a target; in Remote mode target is a host:port combination.

Listing all processes running locally

To print all go processes, run gops without arguments:

$ gops
983   980    uplink-soecks  go1.9   /usr/local/bin/uplink-soecks
52697 52695  gops           go1.10  /Users/jbd/bin/gops
4132  4130   foops        * go1.9   /Users/jbd/bin/foops
51130 51128  gocode         go1.9.2 /Users/jbd/bin/gocode

The output displays:

PID
PPID
Name of the program
Go version used to build the program
Location of the associated program

Note that processes running the agent are marked with * next to the PID (e.g. 4132*).

$ gops <pid> [duration]

To report more information about a process, run gops followed by a PID:

$ gops <pid>
parent PID:	5985
threads:	27
memory usage:	0.199%
cpu usage:	0.139%
username:	jbd
cmd+args:	/Applications/Splice.app/Contents/Resources/Splice Helper.app/Contents/MacOS/Splice Helper -pid 5985
local/remote:	127.0.0.1:56765 <-> :0 (LISTEN)
local/remote:	127.0.0.1:56765 <-> 127.0.0.1:50955 (ESTABLISHED)
local/remote:	100.76.175.164:52353 <-> 54.241.191.232:443 (ESTABLISHED)

If an optional duration is specified in the format as expected by time.ParseDuration, the CPU usage for the given time period is reported in addition:

$ gops <pid> 2s
parent PID:	5985
threads:	27
memory usage:	0.199%
cpu usage:	0.139%
cpu usage (2s):	0.271%
username:	jbd
cmd+args:	/Applications/Splice.app/Contents/Resources/Splice Helper.app/Contents/MacOS/Splice Helper -pid 5985
local/remote:	127.0.0.1:56765 <-> :0 (LISTEN)
local/remote:	127.0.0.1:56765 <-> 127.0.0.1:50955 (ESTABLISHED)
local/remote:	100.76.175.164:52353 <-> 54.241.191.232:443 (ESTABLISHED)

$ gops tree

To display a process tree with all the running Go processes, run the following command:

$ gops tree

...
├── 1
│   └── 13962 [gocode] {go1.9}
├── 557
│   └── 635 [com.docker.supervisor] {go1.9.2}
│       └── 638 [com.docker.driver.amd64-linux] {go1.9.2}
└── 13744
    └── 67243 [gops] {go1.10}

$ gops stack (<pid>|<addr>)

In order to print the current stack trace from a target program, run the following command:

$ gops stack (<pid>|<addr>)
gops stack 85709
goroutine 8 [running]:
runtime/pprof.writeGoroutineStacks(0x13c7bc0, 0xc42000e008, 0xc420ec8520, 0xc420ec8520)
	/Users/jbd/go/src/runtime/pprof/pprof.go:603 +0x79
runtime/pprof.writeGoroutine(0x13c7bc0, 0xc42000e008, 0x2, 0xc428f1c048, 0xc420ec8608)
	/Users/jbd/go/src/runtime/pprof/pprof.go:592 +0x44
runtime/pprof.(*Profile).WriteTo(0x13eeda0, 0x13c7bc0, 0xc42000e008, 0x2, 0xc42000e008, 0x0)
	/Users/jbd/go/src/runtime/pprof/pprof.go:302 +0x3b5
github.com/google/gops/agent.handle(0x13cd560, 0xc42000e008, 0xc420186000, 0x1, 0x1, 0x0, 0x0)
	/Users/jbd/src/github.com/google/gops/agent/agent.go:150 +0x1b3
github.com/google/gops/agent.listen()
	/Users/jbd/src/github.com/google/gops/agent/agent.go:113 +0x2b2
created by github.com/google/gops/agent.Listen
	/Users/jbd/src/github.com/google/gops/agent/agent.go:94 +0x480
# ...

$ gops memstats (<pid>|<addr>)

To print the current memory stats, run the following command:

$ gops memstats (<pid>|<addr>)

$ gops gc (<pid>|<addr>)

If you want to force run garbage collection on the target program, run gc. It will block until the GC is completed.

$ gops setgc (<pid>|<addr>)

Sets the garbage collection target to a certain percentage. The following command sets it to 10%:

$ gops setgc (<pid>|<addr>) 10

$ gops version (<pid>|<addr>)

gops reports the Go version the target program is built with, if you run the following:

$ gops version (<pid>|<addr>)
devel +6a3c6c0 Sat Jan 14 05:57:07 2017 +0000

$ gops stats (<pid>|<addr>)

To print the runtime statistics such as number of goroutines and GOMAXPROCS.

Profiling

Pprof

gops supports CPU and heap pprof profiles. After reading either heap or CPU profile, it shells out to the go tool pprof and let you interactively examine the profiles.

To enter the CPU profile, run:

$ gops pprof-cpu (<pid>|<addr>)

To enter the heap profile, run:

$ gops pprof-heap (<pid>|<addr>)

Execution trace

gops allows you to start the runtime tracer for 5 seconds and examine the results.

$ gops trace (<pid>|<addr>)

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google/gops: A tool to list and diagnose Go processes currently running on your ...

开源软件名称：

开源软件地址：

开源编程语言：

开源软件介绍：

gops

Installation

Diagnostics

Manual

Listing all processes running locally

$ gops <pid> [duration]

$ gops tree

$ gops stack (<pid>|<addr>)

$ gops memstats (<pid>|<addr>)

$ gops gc (<pid>|<addr>)

$ gops setgc (<pid>|<addr>)

$ gops version (<pid>|<addr>)

$ gops stats (<pid>|<addr>)

Profiling

Pprof

Execution trace

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