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pages.zh/linux/perf.md
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# perf
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> Linux性能计数器测量的框架。
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> 更多信息:<https://perf.wiki.kernel.org>。
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- 显示命令的基本性能计数器统计信息:
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`perf stat {{gcc hello.c}}`
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- 显示系统范围的实时性能计数器分析:
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`sudo perf top`
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- 运行命令并将其分析记录到`perf.data`中:
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`sudo perf record {{command}}`
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- 将现有进程的分析记录到`perf.data`中:
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`sudo perf record -p {{pid}}`
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- 读取`perf.data`(由`perf record`创建)并显示分析结果:
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`sudo perf report`
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