On Tue, Jan 05, 2016 at 09:52:46PM +0100, Andi Kleen wrote:
> > 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
We should enable --group by default if recorded data file has groups IMHO.
Arnaldo, could you please take this?
https://lkml.org/lkml/2015/11/29/76
> 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
Thanks for sharing!
>
> You may also want to adapt some of Brendan's one liners:
>
> http://www.brendangregg.com/perf.html
Will take a look.
Thanks,
Namhyung
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