linux-kernel - Re: [PATCH 6/8] perf tools: Add hist.percentage config option

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Date:	Mon, 24 Feb 2014 15:41:26 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Jiri Olsa <jolsa@...hat.com>
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 6/8] perf tools: Add hist.percentage config option

On Thu, 20 Feb 2014 12:01:12 +0100, Jiri Olsa wrote:
> On Mon, Feb 10, 2014 at 11:47:23AM +0900, Namhyung Kim wrote:
>> Add hist.percentage option for setting default value of the
>> symbol_conf.filter_relative.  It affects the output of various perf
>> commands (like perf report, top and diff) only if filter(s) applied.
>> 
>> An user can write .perfconfig file like below to show absolute
>> percentage of filtered entries by default:
>
> SNIP
>
>> +++ b/tools/perf/util/hist.c
>> @@ -934,3 +934,17 @@ int hists__link(struct hists *leader, struct hists *other)
>>  
>>  	return 0;
>>  }
>> +
>> +int perf_hist_config(const char *var, const char *value)
>> +{
>> +	if (!strcmp(var, "hist.percentage")) {
>> +		if (!strcmp(value, "relative"))
>> +			symbol_conf.filter_relative = true;
>> +		else if (!strcmp(value, "absolute"))
>> +			symbol_conf.filter_relative = false;
>> +		else
>> +			return -1;
>> +	}
>> +
>> +	return 0;
>> +}
>
> the inner stuff could be done in parse_percentage function
> not to duplicate the symbol_conf.filter_relative assignment

Will do!

Thanks,
Namhyung
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