linux-kernel - Re: [PATCH 7/8] perf ui/tui: Add 'F' hotkey to toggle percentage output

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Date:	Thu, 20 Feb 2014 11:54:02 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	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>,
	David Ahern <dsahern@...il.com>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH 7/8] perf ui/tui: Add 'F' hotkey to toggle percentage
 output

On Mon, Feb 10, 2014 at 11:47:25AM +0900, Namhyung Kim wrote:
> Add 'F' hotkey to toggle relative and absolute percentage of filtered
> entries.
> 
> Suggested-by: Jiri Olsa <jolsa@...hat.com>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
>  tools/perf/ui/browsers/hists.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
> index 14ba6d524943..681c484c5c8e 100644
> --- a/tools/perf/ui/browsers/hists.c
> +++ b/tools/perf/ui/browsers/hists.c
> @@ -1447,6 +1447,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
>  	"C             Collapse all callchains\n"			\
>  	"d             Zoom into current DSO\n"				\
>  	"E             Expand all callchains\n"				\
> +	"F             Toggle percentage of filtered entries\n"		\
>  
>  	/* help messages are sorted by lexical order of the hotkey */
>  	const char report_help[] = HIST_BROWSER_HELP_COMMON
> @@ -1552,6 +1553,9 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
>  			if (env->arch)
>  				tui__header_window(env);
>  			continue;
> +		case 'F':
> +			symbol_conf.filter_relative ^= 1;
> +			continue;
>  		case K_F1:
>  		case 'h':
>  		case '?':
> -- 
> 1.7.11.7
> 

when in relative mode i get 0 samples count
also in --stdio:

[jolsa@...va perf]$ ./perf report -s symbol --symbols=system_call,vfs_write --stdio --percentage=relative
Failed to open /tmp/perf-1063.map, continuing without symbols
# To display the perf.data header info, please use --header/--header-only options.
#
# Samples: 0  of event 'cycles'
# Event count (approx.): 6046797
#
# Overhead           Symbol
# ........  ...............
#
    57.05%  [k] system_call
    42.95%  [k] vfs_write  


jirka
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