From: Milian Wolff <mail@milianw.de>
To: linux-perf-users <linux-perf-users@vger.kernel.org>
Subject: Size of perf data files
Date: Wed, 26 Nov 2014 13:47:41 +0100 [thread overview]
Message-ID: <1601237.BEhNSa8l6d@milian-kdab2> (raw)
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.
I assume currently, perf is built for lowest possible overhead in mind. But
could maybe a post-processor be added, which can be run after perf is finished
collecting data, that aggregates common backtraces etc.? Essentially what I'd
like to see would be something similar to:
perf report --stdout | gzip > perf.report.gz
perf report -g graph --no-children -i perf.report.gz
Does anything like that exist yet? Or is it planned?
Bye
--
Milian Wolff
mail@milianw.de
http://milianw.de
next reply other threads:[~2014-11-26 12:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-26 12:47 Milian Wolff [this message]
2014-11-26 16:06 ` Size of perf data files 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
-- 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
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