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From: Martin Rosenberg <mrosenberg@mozilla.com>
To: linux-kernel@vger.kernel.org
Subject: perf report does not get along with perf record -A
Date: Mon, 25 Jun 2012 17:10:57 -0700 (PDT)	[thread overview]
Message-ID: <443195725.4576626.1340669457668.JavaMail.root@mozilla.com> (raw)
In-Reply-To: <1974638847.4574239.1340667841898.JavaMail.root@mozilla.com>

I'm working under the assumption that if I want to collect statistics from multiple runs of a program, I can do this by running
perf record prog; perf record -A prog; perf record -A prog

I've found that running perf record twice results in perf report hanging, and running it more than twice results in perf report first spewing a message about invalid formats, then crashing.
A log of the session, as well as the binary, its input and perf.data can be found at:

http://www.club.cc.cmu.edu/~mjrosenb/ion/perf_crash.tar.gz

Thanks --Marty

       reply	other threads:[~2012-06-26  0:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1974638847.4574239.1340667841898.JavaMail.root@mozilla.com>
2012-06-26  0:10 ` Martin Rosenberg [this message]
2012-06-26  4:40   ` perf report does not get along with perf record -A David Ahern
2012-06-26  5:04     ` Martin Rosenberg
2012-06-26 14:24   ` David Ahern

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