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koute / not-perf

A sampling CPU profiler for Linux
Apache License 2.0
868 stars 40 forks source link

Timestamp support? #1

Closed canselcik closed 6 years ago

canselcik commented 6 years ago

First of all, amazing work. I just had a chance to test it and works wonderfully and addresses an important use case for me.

While the collated output works great with flamegraph.pl, I was also hoping to be able to use it with https://github.com/Netflix/flamescope.

Flamescope seems to be unable to parse the timestamps to divide the perf output to discrete time intervals. Is is because this is missing in the output unlike the normal perf output would?

Thanks.

koute commented 6 years ago

nperf collate by default outputs already preprocessed traces which FlameScope cannot load AFAIK.

I've just added raw perf-like output to the collate subcommand, so it should work with FlameScope now. Try running nperf collate --format=perf-like datafile > traces and then load that into the FlameScope.

canselcik commented 6 years ago

Hi,

Thanks for addressing this so quickly. I will try the commit https://github.com/nokia/nperf/commit/5b00d8d2751dc0b9e772b2cff272351e642a463e and close the issue if it works.