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30 lines
666 B
Plaintext
30 lines
666 B
Plaintext
---
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syntax: markdown
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tags: [tldr, linux]
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source: https://github.com/tldr-pages/tldr.git
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---
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# perf
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> Framework for Linux performance counter measurements.
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> More information: <https://perfwiki.github.io/main/>.
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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]}} {{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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