tldr/pages/linux/perf.md

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# perf
> Framework for linux performance counter measurements.
- Display basic performance counter stats for a command:
`perf stat {{gcc hello.c}}`
- Display system-wide real time performance counter profile:
`sudo perf top`
- Run a command and record its profile into "perf.data":
`sudo perf record {{command}}`
- Read "perf.data" (created by `perf record`) and display the profile:
`sudo perf report`