From: Andi Kleen <andi@firstfloor.org>
To: Milian Wolff <mail@milianw.de>
Cc: linux-perf-users <linux-perf-users@vger.kernel.org>
Subject: Re: Size of perf data files
Date: Wed, 26 Nov 2014 12:48:59 -0800 [thread overview]
Message-ID: <871topit6s.fsf@tassilo.jf.intel.com> (raw)
In-Reply-To: <1601237.BEhNSa8l6d@milian-kdab2> (Milian Wolff's message of "Wed, 26 Nov 2014 13:47:41 +0100")
Milian Wolff <mail@milianw.de> writes:
> Hello all,
>
> I wonder whether there is a way to reduce the size of perf data files. Esp.
> when I collect call graph information via Dwarf on user space applications, I
> easily end up with multiple gigabytes of data in just a few seconds.
Use a fixed period and reduce the period or so.
-c 10000000
Don't use dwarf backtracing.
On new enough perf you can disable time stamps --no-time.
-Andi
--
ak@linux.intel.com -- Speaking for myself only
next prev parent reply other threads:[~2014-11-26 20:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-26 12:47 Size of perf data files Milian Wolff
2014-11-26 16:06 ` Arnaldo Carvalho de Melo
2014-11-26 18:11 ` Milian Wolff
2014-11-27 0:56 ` Namhyung Kim
2014-11-27 13:19 ` Arnaldo Carvalho de Melo
2014-11-28 6:18 ` Namhyung Kim
2014-11-26 20:48 ` Andi Kleen [this message]
-- strict thread matches above, loose matches on Subject: below --
2015-01-06 3:21 Yale Zhang
2015-01-06 5:39 ` Andi Kleen
2015-01-06 21:02 ` Yale Zhang
2015-01-06 21:29 ` Andi Kleen
2015-01-09 2:06 ` Frank Ch. Eigler
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=871topit6s.fsf@tassilo.jf.intel.com \
--to=andi@firstfloor.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mail@milianw.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.