linux-kernel - Re: [PATCH 2/2] perf top: Handle 'z' key for toggle zeroing samples in TUI

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Date:	Wed, 13 Aug 2014 01:07:30 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Olsa <jolsa@...hat.com>, David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 2/2] perf top: Handle 'z' key for toggle zeroing samples
 in TUI

On Tue, Aug 12, 2014 at 10:16 AM, Namhyung Kim <namhyung@...nel.org> wrote:
> The perf top TUI lacks 'z' key support to toggle sample zeroing.
> Add it.
>
Works for me.
Tested-by: Stephane Eranian <eranian@...gle.com>

> Reported-by: Stephane Eranian <eranian@...gle.com>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
>  tools/perf/ui/browsers/hists.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
> index 045c1e16ac59..381c085a41b8 100644
> --- a/tools/perf/ui/browsers/hists.c
> +++ b/tools/perf/ui/browsers/hists.c
> @@ -10,6 +10,7 @@
>  #include "../../util/pstack.h"
>  #include "../../util/sort.h"
>  #include "../../util/util.h"
> +#include "../../util/top.h"
>  #include "../../arch/common.h"
>
>  #include "../browser.h"
> @@ -1530,6 +1531,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
>         "P             Print histograms to perf.hist.N\n"
>         "t             Zoom into current Thread\n"
>         "V             Verbose (DSO names in callchains, etc)\n"
> +       "z             Toggle zeroing of samples\n"
>         "/             Filter symbol by name";
>
>         if (browser == NULL)
> @@ -1630,6 +1632,13 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
>                 case 'F':
>                         symbol_conf.filter_relative ^= 1;
>                         continue;
> +               case 'z':
> +                       if (!is_report_browser(hbt)) {
> +                               struct perf_top *top = hbt->arg;
> +
> +                               top->zero = !top->zero;
> +                       }
> +                       continue;
>                 case K_F1:
>                 case 'h':
>                 case '?':
> --
> 2.0.0
>
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