> >perf diff does not handle this? Especially with the differential > >profiling options it should. > > It does not work if you, in my case, compare ICC and GCC, where ICC uses a > different mangling > scheme for fortran modules. Moreover, situation can be more complicated if a > compiler performs > a bit different inlining decisions.
I suppose it could be enhanced with an input file that describes equivalent functions. But yes wouldn't work for inlining. > Good point. Can you please help me how to compute a function percentage usage > in perf annotate ;) ? I wouldn't use time at all. Just sum up periods and then compute the percentage. The period sum computation already happens in the main view, and is displayed there. So you only need to save that value somewhere and then use it in the annotate display for another column. # Samples: 24 of event 'cycles' # Event count (approx.): 8856637 -Andi -- a...@linux.intel.com -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
