linux-kernel - Re: [PATCH v1 2/2] perf report: Jump to symbol source view from total cycles view

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Date:   Mon, 18 Nov 2019 11:47:37 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     "Jin, Yao" <yao.jin@...ux.intel.com>
Cc:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com,
        Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH v1 2/2] perf report: Jump to symbol source view from
 total cycles view

On Sun, Nov 17, 2019 at 08:12:02PM +0800, Jin, Yao wrote:
> 
> 
> On 11/15/2019 9:34 PM, Jiri Olsa wrote:
> > On Wed, Nov 13, 2019 at 08:48:52AM +0800, Jin Yao wrote:
> > > This patch supports jumping from tui total cycles view to symbol
> > > source view.
> > > 
> > > For example,
> > > 
> > > perf record -b ./div
> > > perf report --total-cycles
> > > 
> > > In total cycles view, we can select one entry and press 'a' or
> > > press ENTER key to jump to symbol source view.
> > > 
> > > Signed-off-by: Jin Yao <yao.jin@...ux.intel.com>
> > > ---
> > >   tools/perf/builtin-report.c    |  9 ++++++---
> > >   tools/perf/ui/browsers/hists.c | 25 +++++++++++++++++++++++--
> > >   tools/perf/util/block-info.c   |  6 ++++--
> > >   tools/perf/util/block-info.h   |  3 ++-
> > >   tools/perf/util/hist.h         |  7 +++++--
> > >   5 files changed, 40 insertions(+), 10 deletions(-)
> > > 
> > > diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
> > > index 1e81985b7d56..ceebea4013ca 100644
> > > --- a/tools/perf/builtin-report.c
> > > +++ b/tools/perf/builtin-report.c
> > > @@ -493,7 +493,9 @@ static int perf_evlist__tui_block_hists_browse(struct evlist *evlist,
> > >   	evlist__for_each_entry(evlist, pos) {
> > >   		ret = report__browse_block_hists(&rep->block_reports[i++].hist,
> > > -						 rep->min_percent, pos);
> > > +						 rep->min_percent, pos,
> > > +						 &rep->session->header.env,
> > > +						 &rep->annotation_opts);
> > >   		if (ret != 0)
> > >   			return ret;
> > >   	}
> > > @@ -525,7 +527,8 @@ static int perf_evlist__tty_browse_hists(struct evlist *evlist,
> > >   		if (rep->total_cycles_mode) {
> > >   			report__browse_block_hists(&rep->block_reports[i++].hist,
> > > -						   rep->min_percent, pos);
> > > +						   rep->min_percent, pos,
> > > +						   NULL, NULL);
> > >   			continue;
> > >   		}
> > > @@ -1418,7 +1421,7 @@ int cmd_report(int argc, const char **argv)
> > >   		if (sort__mode != SORT_MODE__BRANCH)
> > >   			report.total_cycles_mode = false;
> > >   		else
> > > -			sort_order = "sym";
> > > +			sort_order = NULL;
> > 
> > hum, how is this related to this change?
> > 
> > jirka
> > 
> 
> Hi Jiri,
> 
> If we set the sort_order to NULL, it will use the default branch sort order.
> The percent value in new annotate view will be consistent with the percent
> in annotate view which is switched from perf report.
> 
> I observed the original percent gap with previous patches and then I decide
> to use the default sort order. Now the test result looks good.

ok, plz make note of it in changelog or comment

thanks,
jirka