https://arolstar52-zhtest.hf.space/index.php?action=history&feed=atom&title=Perf
Perf - 版本历史
2026-07-06T11:36:35Z
在这个wiki上该页的修订历史
MediaWiki 1.43.8
https://arolstar52-zhtest.hf.space/index.php?title=Perf&diff=3637350&oldid=prev
imported>Kcx36：增加或调整分类
2022-09-21T09:14:19Z
<p>增加或调整分类</p>
<p><b>新页面</b></p><div>{{Primarysources|time=2021-04-13T17:27:45+00:00}}<br />
{{Lowercase title}}<br />
{{Infobox software<br />
| name = <br />
| title = perf<br />
| logo = <!-- Image name is enough --><br />
| logo caption = <br />
| logo_size = <br />
| logo_alt = <br />
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| caption = <br />
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| latest preview version = <br />
| latest preview date = <!-- {{Start date and age|YYYY|MM|DD|df=yes/no}} --><br />
| programming language = C<br />
| operating system = [[Linux kernel]]<br />
| platform = <br />
| size = <br />
| language = <br />
| language count = <!-- DO NOT include this parameter unless you know what it does --><br />
| language footnote = <br />
| genre = 性能监测和分析<br />
| license = [[GNU GPL]]<br />
| repo = https://github.com/torvalds/linux/tree/master/tools/perf<br />
| website = {{URL|https://perf.wiki.kernel.org/index.php/Main_Page}}<br />
}}<br />
'''perf'''是一个Linux系统中的性能分析工具，它支持硬件性能计数、软件性能计数和动态侦测。<br />
<br />
== 子命令 ==<br />
perf与一些子命令配合使用:<br />
* <tt>stat</tt>: 测量运行单个程序或是系统运行一段时间内的性能计数<br />
* <tt>top</tt>: 动态查看当前系统的热点函数<br />
* <tt>record</tt>: 测量和保存单个程序的采样数据<ref name="perfff">Urs Fässler<br />
[http://openlab.web.cern.ch/sites/openlab.web.cern.ch/files/technical_documents/Urs_Fassler_report.pdf perf file format] {{Webarchive|url=https://web.archive.org/web/20121214181811/http://openlab.web.cern.ch/sites/openlab.web.cern.ch/files/technical_documents/Urs_Fassler_report.pdf |date=2012-12-14 }}, CERN Openlab, 2011</ref><br />
* <tt>report</tt>: 分析由perf record产生的数据文件<ref name="perfff" /><br />
* <tt>list</tt>: 列举出perf支持的性能计数事件<br />
<br />
== 参考文献 ==<br />
{{reflist}}<br />
<br />
[[Category:Linux内核功能]]<br />
[[Category:程序设计工具]]<br />
[[Category:Linux軟件]]</div>
imported>Kcx36