From: Andi Kleen <andi@firstfloor.org>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: Cost in sym vs. sym@plt
Date: Wed, 31 Aug 2016 09:51:06 -0700 [thread overview]
Message-ID: <8760qgrif9.fsf@tassilo.jf.intel.com> (raw)
In-Reply-To: <2472727.a3qg7mcsuX@milian-kdab2> (Milian Wolff's message of "Tue, 30 Aug 2016 13:54:53 +0200")
Milian Wolff <milian.wolff@kdab.com> writes:
>
> I'm asking, because I did not expect the cost of the @plt to be that large. Is
> this maybe due to skid? I doubt that, since the above is from a cycles:ppp
> profile on an Intel Haswell i5, which is supposedly accurate.
There's no such thing as fully accurate profiling.
-Andi
next prev parent reply other threads:[~2016-08-31 16:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-30 11:54 Cost in sym vs. sym@plt Milian Wolff
2016-08-31 16:51 ` Andi Kleen [this message]
2016-09-03 20:40 ` Milian Wolff
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