From: Milian Wolff <milian.wolff@kdab.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: Cost in sym vs. sym@plt
Date: Sat, 03 Sep 2016 22:40:41 +0200 [thread overview]
Message-ID: <3408445.G4dNQRL7lP@agathebauer> (raw)
In-Reply-To: <8760qgrif9.fsf@tassilo.jf.intel.com>
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On Mittwoch, 31. August 2016 09:51:06 CEST Andi Kleen wrote:
> 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.
OK, so does this mean it's skid that I'm seeing here?
Thanks
--
Milian Wolff | milian.wolff@kdab.com | Software Engineer
KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
Tel: +49-30-521325470
KDAB - The Qt Experts
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prev parent reply other threads:[~2016-09-03 20:40 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
2016-09-03 20:40 ` Milian Wolff [this message]
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