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Groups > linux.kernel > #1369928

Re: "perf: interrupt took too long" messages even with perf_cpu_time_max_percent==0

From Markus Trippelsdorf <markus@trippelsdorf.de>
Newsgroups linux.kernel
Subject Re: "perf: interrupt took too long" messages even with perf_cpu_time_max_percent==0
Date 2016-04-02 13:30 +0200
Message-ID <rjrUC-30a-7@gated-at.bofh.it> (permalink)
References <rjqcb-1I3-39@gated-at.bofh.it> <rjrBf-2Rm-1@gated-at.bofh.it> <rjrKW-2UX-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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

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Thread

"perf: interrupt took too long" messages even with  perf_cpu_time_max_percent==0 Markus Trippelsdorf <markus@trippelsdorf.de> - 2016-04-02 11:40 +0200
  Re: "perf: interrupt took too long" messages even with  perf_cpu_time_max_percent==0 Peter Zijlstra <peterz@infradead.org> - 2016-04-02 13:10 +0200
    Re: "perf: interrupt took too long" messages even with  perf_cpu_time_max_percent==0 Markus Trippelsdorf <markus@trippelsdorf.de> - 2016-04-02 13:20 +0200
      Re: "perf: interrupt took too long" messages even with  perf_cpu_time_max_percent==0 Markus Trippelsdorf <markus@trippelsdorf.de> - 2016-04-02 13:30 +0200
      Re: "perf: interrupt took too long" messages even with  perf_cpu_time_max_percent==0 Peter Zijlstra <peterz@infradead.org> - 2016-04-02 18:40 +0200
    Re: "perf: interrupt took too long" messages even with  perf_cpu_time_max_percent==0 Markus Trippelsdorf <markus@trippelsdorf.de> - 2016-04-13 12:10 +0200

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