https://github.com/tokuhirom/go-hsperfdata

Quite fast jps/jstat
https://github.com/tokuhirom/go-hsperfdata

Last synced: 18 days ago
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Quite fast jps/jstat

• Host: GitHub
• URL: https://github.com/tokuhirom/go-hsperfdata
• Owner: tokuhirom
• Created: 2015-06-12T22:22:15.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2018-10-08T04:53:42.000Z (about 6 years ago)
• Last Synced: 2024-10-11T20:56:53.253Z (about 1 month ago)
• Language: Go
• Homepage:
• Size: 1.03 MB
• Stars: 24
• Watchers: 4
• Forks: 7
• Open Issues: 3
• Metadata Files:
  • Readme: README.md

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README

        
# go-hsperfdata

[![Build Status](https://travis-ci.org/tokuhirom/go-hsperfdata.svg?branch=master)](https://travis-ci.org/tokuhirom/go-hsperfdata)

HotSpot JVM's performance data analyzer written in Golang.

## What's this?

Parser library for HotSpot JVM's performance data.

And there is some useful commands built on it.

## Why?

jstat/jps is slow. And these commands aren't programmable.

## INSTALL

    go get github.com/tokuhirom/go-hsperfdata/hsps/

    go get github.com/tokuhirom/go-hsperfdata/hsstat/

    go get github.com/tokuhirom/go-hsperfdata/hssampler/

    go get github.com/tokuhirom/go-hsperfdata/hsjcmd/

## SYNOPSIS

    $ hsps

    13223

    21916 org.jetbrains.jps.cmdline.Launcher

    $ hsstat 21916

    sun.rt._sync_Inflations=13

    sun.rt._sync_Deflations=11

    sun.rt._sync_ContendedLockAttempts=65

    ...

    sun.classloader.findClassTime=937707942

    sun.urlClassLoader.readClassBytesTime=164844351

    sun.zip.zipFiles=135

    sun.zip.zipFile.openTime=23649506

## Benchmarking

```

$ time hsps

13223

21916 org.jetbrains.jps.cmdline.Launcher

hsps  0.00s user 0.00s system 83% cpu 0.010 total

$ time jps

13223

21916 Launcher

93597 Jps

jps  0.41s user 0.09s system 104% cpu 0.479 total

```

## LICENSE

    The MIT License (MIT)

    Copyright © 2015 Tokuhiro Matsuno, http://64p.org/ 

    Permission is hereby granted, free of charge, to any person obtaining a copy

    of this software and associated documentation files (the “Software”), to deal

    in the Software without restriction, including without limitation the rights

    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

    copies of the Software, and to permit persons to whom the Software is

    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in

    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

    THE SOFTWARE.