From: Andi Kleen <andi@firstfloor.org>
To: Manuel Selva <manuel.selva@insa-lyon.fr>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: Understanding perf mem -t load results
Date: Sun, 15 Dec 2013 13:18:40 -0800 [thread overview]
Message-ID: <877gb5vmmn.fsf@tassilo.jf.intel.com> (raw)
In-Reply-To: <1776760155.10395562.1386857164818.JavaMail.root@insa-lyon.fr> (Manuel Selva's message of "Thu, 12 Dec 2013 15:06:04 +0100 (CET)")
Manuel Selva <manuel.selva@insa-lyon.fr> writes:
>
> perf mem -t load rec -c 1 make -j18
With -c1 on such a frequent event you will not sample much, but just
throttle a lot, as the PMI handler would use too much time.
Your numbers are likely garbage.
-Andi
--
ak@linux.intel.com -- Speaking for myself only
next prev parent reply other threads:[~2013-12-15 21:18 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-12 14:06 Understanding perf mem -t load results Manuel Selva
2013-12-15 18:27 ` Manuel Selva
2013-12-15 21:18 ` Andi Kleen [this message]
2013-12-15 22:03 ` Manuel Selva
2013-12-15 23:45 ` Andi Kleen
2013-12-16 9:13 ` Manuel Selva
2013-12-20 9:38 ` Manuel Selva
2013-12-24 2:18 ` Andi Kleen
2013-12-24 7:10 ` Manuel Selva
2013-12-24 7:28 ` Andi Kleen
2013-12-24 7:42 ` Manuel Selva
2013-12-24 21:27 ` Andi Kleen
2013-12-25 10:25 ` Manuel Selva
2014-01-07 15:06 ` Manuel Selva
2014-01-07 21:27 ` Andi Kleen
2014-01-08 8:53 ` Manuel Selva
2014-01-08 9:50 ` Manuel Selva
2014-01-08 19:44 ` Andi Kleen
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