linux-kernel - Re: [PATCH] perf tools: Add hint for 'Too many events are opened.' error message

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Message-ID: <20150527233028.GB24859@kernel.org>
Date:	Wed, 27 May 2015 20:30:28 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Jiri Olsa <jolsa@...nel.org>
Cc:	Michael Petlan <mpetlan@...hat.com>,
	lkml <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	David Ahern <dsahern@...il.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH] perf tools: Add hint for 'Too many events are opened.'
 error message

Em Mon, May 25, 2015 at 10:51:54PM +0200, Jiri Olsa escreveu:
> Enhancing the 'Too many events are opened.' error message
> with hint to use use 'ulimit -n <limit>' command.

<SNIP>

> Now:
>   $ perf record -e 'sched:*,syscalls:*' ls
>   Error:
>   Too many events are opened.
>   Probably the maximum number of open file descriptors has been reached.
>   Hint: Try again after reducing the number of events.
>   Hint: Try increasing the limit with 'ulimit -n <limit>'

Thanks, applied.

- Arnaldo
 
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