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文章标签 ‘java performance’

Using SystemTap

2013年10月14日 评论已被关闭

I work at Joyent – a cloud computing company – doing performance analysis of small to large cloud environments. Most of our systems have DTrace: the first widely used implementation of Dynamic Tracing, which we use for monitoring and performance analysis. But we also have some Linux, which I’ve been analyzing in the following situations:

  • Competitive performance analysis: measuring the runtime of certain codepaths in Linux vs SmartOS.
  • KVM performance tuning: we run Linux as guests of the KVM we ported to Illumos, and as part of that work I’ve studied performance from the host (via DTrace) and from the guest (via SystemTap).
  • Real customer issues: replicated in a KVM lab environment for safe study with SystemTap.

I would prefer to log in to the KVM guests and run DTrace, but it’s not available on those Linux systems. (In the future, we may have a way to reach into the guest using DTrace from the host to trace its internals, be it Linux or Windows.) In the meantime, I need to do some serious performance analysis on Linux (including kernel code-path latency) so I’m using SystemTap.

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JProbe Plugins for Eclipse 安装体验 zz

2009年7月13日 1 条评论

一直没机会折腾jprobe,今天帮好友里头折腾一下。顺便看看效果。转载个文章备用。

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商业java静态分析工具

2009年2月11日 评论已被关闭

咋一看,还以为是for c/cpp的,可惜可惜

AppPerfect DevTest4J是一套用于协助程序开发及检测的工具包,由AppPerfect Code Analyzer(代码静态分析),AppPerfect Unit Tester(模块检测)及AppPerfect Java Profiler(代码效率检测)三部分组成。分别是它的 WINDOWS、LINUX版本。 阅读全文…

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java性能分析程序

2009年2月6日 评论已被关闭

今天有同事问到这个,我找了一下,quest的jprobe貌似不错。http://www.quest.com/jprobe/

JProbe is an enterprise-class Java profiler providing intelligent diagnostics on memory usage, performance and test coverage, allowing developers to quickly pinpoint and repair the root cause of application code performance and stability problems that obstruct component and integration integrity.

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