linux-kernel - Re: "perf: interrupt took too long" messages even with perf_cpu_time_max

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Message-ID: <20160402112351.GC305@x4>
Date:	Sat, 2 Apr 2016 13:23:51 +0200
From:	Markus Trippelsdorf <markus@...ppelsdorf.de>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Subject: Re: "perf: interrupt took too long" messages even with
 perf_cpu_time_max_percent==0

On 2016.04.02 at 13:17 +0200, Markus Trippelsdorf wrote:
> > Does the below help?
> 
> Thanks. I will test it later. But 91a612eea9a3 makes the assumption that only
> sysctl_perf_cpu_time_max_percent==100 disables the feature also in
> kernel/events/core.c.

Please ignore the last sentence. It doesn't make sense.

-- 
Markus