On Mon, Sep 12, 2016 at 11:28:44AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Mon, Sep 12, 2016 at 03:19:58PM +0900, Namhyung Kim escreveu:
> > Now all missing pieces are implemented, let's enable it. An example
> > output below:
>
> So. what are those events? What was the command line that produced the
> 'perf.data' file that was used?
Oh, the command line was:
$ perf record -e '{cycles,instructions}' make
I'll add it to the changelog.
Thanks,
Namhyung
p.s. Actually the most overhead goes to the compiler (cc1) in this
data. But I omitted it since it has so many unresolved symbol
addresses. I think it's not a problem to demonstrate the hierarchy +
group feature.
>
> - Arnaldo
>
> > $ perf report --hierarchy --stdio
> > ...
> > # Overhead Command / Shared Object / Symbol
> > # ...................... ..................................
> > #
> > 25.74% 27.18% sh
> > 19.96% 24.14% libc-2.24.so
> > 9.55% 14.64% [.] __strcmp_sse2
> > 1.54% 0.00% [.] __tfind
> > 1.07% 1.13% [.] _int_malloc
> > 0.95% 0.00% [.] __strchr_sse2
> > 0.89% 1.39% [.] __tsearch
> > 0.76% 0.00% [.] strlen
> > ...
> >
> > Signed-off-by: Namhyung Kim <[email protected]>
> > ---
> > tools/perf/builtin-report.c | 1 -
> > 1 file changed, 1 deletion(-)
> >
> > diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
> > index 1a07c4cdf6ed..6e88460cd13d 100644
> > --- a/tools/perf/builtin-report.c
> > +++ b/tools/perf/builtin-report.c
> > @@ -935,7 +935,6 @@ int cmd_report(int argc, const char **argv, const char
> > *prefix __maybe_unused)
> >
> > if (symbol_conf.report_hierarchy) {
> > /* disable incompatible options */
> > - symbol_conf.event_group = false;
> > symbol_conf.cumulate_callchain = false;
> >
> > if (field_order) {
> > --
> > 2.9.3
