On Wed, 28 Nov 2012 14:52:44 +0100, Jiri Olsa wrote: > +COMPARISON > +---------- > +The comparison is governed by the baseline file. The baseline perf.data > +file is iterated for samples. All other perf.data files specified on > +the command line are searched for the baseline sample pair. If the pair > +is found, specified computation is made and result is displayed. > + > +All samples from non-baseline perf.data files, that do not match any > +baseline entry, are displayed with empty space within baseline column > +and possible computation results (delta) in their related column. > + > +Example files samples: > +- file A with samples f1, f2, f3, f4, f6 > +- file B with samples f2, f4, f5 > +- file C with samples f1, f2, f5 > + > +Example output: > + x - computation takes place for pair > + b - baseline sample percentage > + > +- perf diff A B C > + > + baseline/A compute/B compute/C samples > + --------------------------------------- > + b x f1 > + b x x f2 > + b f3 > + b x f4 > + b f6 > + x x f5 > + > +- perf diff B A C > + > + baseline/B compute/A compute/C samples > + --------------------------------------- > + b x x f2 > + b x f4 > + b x f5 > + x x f1 > + x f3 > + x f6 > + > +- perf diff C B A > + > + baseline/C compute/B compute/A samples > + --------------------------------------- > + b x f1 > + b x x f2 > + b x f5 > + x f3 > + x x f4 > + x f6 > +
It seems not work this way. When I test multiple diff, I didn't get consecutive 'b's on the baseline column like your example in the cover letter of this series. Thanks, Namhyung -- 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/
