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}
- Record the profile of an existing process into `perf.data`:
sudo perf record -p {pid}
- Read `perf.data` (created by `perf record`) and display the profile:
sudo perf report
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