Messages in this thread | | | Date | Tue, 5 Jan 2016 21:52:46 +0100 | From | Andi Kleen <> | Subject | Re: [RFC/PATCH] perf report: Show random usage tip on the help line |
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> Btw, does anyone have some tips to add? :)
Use perf script to show individual samples Use perf report --percent-limit 5 to only show entires above 5% Use perf record -b -g / perf report --branch-history to show branch events Use perf record -b / perf report to show branch mispredictions Use perf report -M intel to show Intel style assembler Use perf report --sort srcfile to sort by source file Use perf report --sort symbol,srcline to sort by source line Use perf record -e '{cycles,cache-misses}:S' / perf report --group to associate events Use perf mem record / perf mem report for memory address profiling Use perf stat -I 1000 to count events in intervals Use perf stat -I 1000 -x, to count events and output as CSV Use perf timechart record / report to generate high level time line Use perf probe --add kfunc / perf record -e kfunc to trace a custom trace point
You may also want to adapt some of Brendan's one liners:
http://www.brendangregg.com/perf.html
-Andi -- ak@linux.intel.com -- Speaking for myself only.
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