From: AmirReza Ghods <ar.ghods@gmail.com>
To: linux-perf-users@vger.kernel.org
Subject: Fwd: The overhead of sampling in perf record
Date: Thu, 7 Nov 2013 00:46:06 +0000 [thread overview]
Message-ID: <CAOJauODPXaVmumdKTzsQhbo3uwR1EH-+CL2XdeQC2L-LexAVdg@mail.gmail.com> (raw)
In-Reply-To: <CAOJauOC53oai36QmGy19H_z51E7P4eBoQJympuz0_Z9j=3f6Sg@mail.gmail.com>
Hi all,
Could you please explain the overhead of sampling with perf record? I
mean, when I do sampling with high frequencies, such as 10000Hz, the
accuracy of counting the events decreases. I want to know the exact
source of overheads which makes the results less accurate.
Best,
Amir
parent reply other threads:[~2013-11-07 0:46 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <CAOJauOC53oai36QmGy19H_z51E7P4eBoQJympuz0_Z9j=3f6Sg@mail.gmail.com>]
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