On Wednesday 23 January 2013 09:49:16 dark_footix wrote: > Hello All, > > > Is there some workshop about timestamping the enter / exit of all the > functions ?
Perf is sampling based, so you won't get *all* enter/exit functions - see e.g. http://en.wikipedia.org/wiki/Profiling_%28computer_programming%29#Statistical_profilers > Is it possible to have the info of timestamp on the enter / exit of each > function with the backtrace info, and the sub-functions called ? and the > thread id . Recording that should be possible with "perf record -g -s -T" I think. > If I am interested to start a development of an graphic interface to visual > the result, do you have some result of log which one I could parse ? which > could be the formalism of the result ? > > What is the best way to develop this kind of feature ? > Does it already exist ? I think what we need is a proper public perf library to parse its generated data. That would then allow one to integrate Perf into KCacheGrind or similar which would give one a really nice GUI. Though a timeline GUI similar to what VTune offers would be very interesting as well. Afaik it does not exist yet. Cheers -- Milian Wolff m...@milianw.de http://milianw.de
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