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Message-ID: <20161124063046.GA12782@sejong>
Date: Thu, 24 Nov 2016 15:30:46 +0900
From: Namhyung Kim <namhyung@...nel.org>
To: David Ahern <dsahern@...il.com>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>,
Ingo Molnar <mingo@...nel.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Jiri Olsa <jolsa@...nel.org>,
LKML <linux-kernel@...r.kernel.org>,
Stephane Eranian <eranian@...gle.com>,
Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH 1/3] perf sched timehist: Mark schedule function in
callchains
Hi David,
On Wed, Nov 23, 2016 at 10:13:46PM -0500, David Ahern wrote:
> On 11/23/16 8:11 PM, Namhyung Kim wrote:
> > The sched_switch event always captured from the scheduler function. So
> > it'd be great omit them from the callchain. This patch marks the
> > functions to be omitted by later patch.
>
> I had this covered by a symbol filter:
>
> https://github.com/dsahern/linux/blob/perf/full-monty-4.1/tools/perf/builtin-sched.c#L3000
>
> Not sure what happened over the years but that should still work and
> allows the user to add more symbols to ignore:
The symbol filter was removed by commit be39db9f2932 ("perf symbols:
Remove symbol_filter_t machinery").
Thanks,
Namhyung
>
> https://github.com/dsahern/linux/blob/perf/full-monty-4.1/tools/perf/builtin-sched.c#L3449
>
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