linux-kernel - Re: [PATCH 1/1 tip] perf top: Move hard coded list to /etc/perfconfig/symbols.skip

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Date:	Mon, 27 Jul 2009 20:58:08 -0700
From:	Ray Lee <ray-lk@...rabbit.org>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Mike Galbraith <efault@....de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1 tip] perf top: Move hard coded list to 
	/etc/perfconfig/symbols.skip

On Mon, Jul 27, 2009 at 5:10 PM, Arnaldo Carvalho de
Melo<acme@...hat.com> wrote:
> This also paves the way to add more symbol lists to be filtered out,
> spinlock anyone?

Generally, the way I've found is best to handle things like this is to either:

A. Have a fall-back list to use if the file isn't found, or
B. Start with the fall-back list of symbols to filter, then add to
them via /etc/... and ~/.perf/...

I like approaching things from the 'everything works even in a
broken/hasty installation' point of view, and it's paid off for me.
Sane defaults are a wonderfully useful thing.
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