mirror of https://github.com/CrimsonTome/tldr.git
25 lines
558 B
Markdown
25 lines
558 B
Markdown
# perf
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> Framework for Linux performance counter measurements.
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> More information: <https://perf.wiki.kernel.org>.
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- Display basic performance counter stats for a command:
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`perf stat {{gcc hello.c}}`
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- Display system-wide real-time performance counter profile:
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`sudo perf top`
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- Run a command and record its profile into `perf.data`:
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`sudo perf record {{command}}`
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- Record the profile of an existing process into `perf.data`:
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`sudo perf record -p {{pid}}`
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- Read `perf.data` (created by `perf record`) and display the profile:
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`sudo perf report`
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