linux-kernel - Re: [RFCv2 0/8] perf tool: Add new event group management

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Message-ID: <87pqb7cdbz.fsf@sejong.aot.lge.com>
Date:	Tue, 17 Apr 2012 11:16:32 +0900
From:	Namhyung Kim <namhyung.kim@....com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>, acme@...hat.com,
	mingo@...e.hu, paulus@...ba.org, cjashfor@...ux.vnet.ibm.com,
	fweisbec@...il.com, linux-kernel@...r.kernel.org,
	tglx@...utronix.de, andi@...stfloor.org
Subject: Re: [RFCv2 0/8] perf tool: Add new event group management

Hi,

On Mon, 16 Apr 2012 17:37:39 +0200, Jiri Olsa wrote:
> On Mon, Apr 16, 2012 at 05:26:02PM +0200, Peter Zijlstra wrote:
>> On Mon, 2012-04-16 at 14:16 +0200, Jiri Olsa wrote:
>> > group:        group_spec '{' events '}'
>> > group_spec:   name  ':' mod | empty 
>> 
>> How about something like:
>> 
>> groups: groups ',' group | group
>> group:	group_name '{' events '}' group_mod
>> group_name: name ':' | empty
>> group_mod: ':' group_mods | empty
>> group_mods: [l]
>> 
>> 
>
> so you'd like something like:
>   'group1:{cycles,faults}:1
>
> hm, do you want the ':' behind the name? It does not seem necessary,
> but might be readable though.. ok :)
>   'group1{cycles,faults}:1
>

+1 for the last form :)

Thanks,
Namhyung
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