linux-kernel - Re: perf report does not get along with perf record -A

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Message-ID: <4FE93D51.7090709@gmail.com>
Date:	Mon, 25 Jun 2012 22:40:49 -0600
From:	David Ahern <dsahern@...il.com>
To:	Martin Rosenberg <mrosenberg@...illa.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: perf report does not get along with perf record -A

On 6/25/12 6:10 PM, Martin Rosenberg wrote:
> 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:

What does 'perf --version' show?

David
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