linux-kernel - Re: [PATCH V2 11/14] perf sched: Make struct perf

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Message-ID: <20131023131646.GA14490@ghostprotocols.net>
Date:	Wed, 23 Oct 2013 10:16:46 -0300
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	David Ahern <dsahern@...il.com>
Cc:	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH V2 11/14] perf sched: Make struct perf_sched sched a
 local variable

Em Wed, Oct 23, 2013 at 07:43:55AM +0100, David Ahern escreveu:
> On 10/22/13 8:34 AM, Adrian Hunter wrote:
> >Change "struct perf_sched sched" from being global to being local.

> Acked-by: David Ahern <dsahern@...il.com>

Hey guys, this is essentially a revert of:

commit f36f83f947ede547833e462696893f866df77324
Author: Namhyung Kim <namhyung.kim@....com>
Date:   Tue Jun 4 14:46:19 2013 +0900

    perf sched: Move struct perf_sched definition out of cmd_sched()
    
    For some reason it consumed quite amount of compile time when declared
    as local variable, and it disappeared when moved out of the function.
    Moving other variables/tables didn't help.
    
    On my system this single-file-change build time reduced from 11s to 3s.
-----

- Arnaldo
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