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intel / PerfSpect

System performance characterization tool based on linux perf

https://intel.github.io/PerfSpect/

BSD 3-Clause "New" or "Revised" License

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Closed harp-intel closed 2 months ago

harp-intel commented 5 months ago

This is an experimental PR that allows running perf-collect as a regular, non-root, user.

The caveat is that a 'root' user must pre-configure the system before running perf-collect. There are three configuration items:

sysctl -w kernel.perf_event_paranoid=0
sysctl -w kernel.nmi_watchdog=0
write '125' to all perf_event_mux_interval_ms files found under /sys/devices/*. for i in $(find /sys/devices -name perf_event_mux_interval_ms); do echo 125 > $i done

harp-intel commented 2 months ago

changes merged into master and release 1.4.0