From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758063Ab2FZAUv (ORCPT ); Mon, 25 Jun 2012 20:20:51 -0400 Received: from nat.fw1.corp.phx1.mozilla.net ([63.245.216.64]:57192 "EHLO zmmta2.mail.corp.phx1.mozilla.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757244Ab2FZAUu (ORCPT ); Mon, 25 Jun 2012 20:20:50 -0400 X-Greylist: delayed 592 seconds by postgrey-1.27 at vger.kernel.org; Mon, 25 Jun 2012 20:20:50 EDT Date: Mon, 25 Jun 2012 17:10:57 -0700 (PDT) From: Martin Rosenberg To: linux-kernel@vger.kernel.org Message-ID: <443195725.4576626.1340669457668.JavaMail.root@mozilla.com> In-Reply-To: <1974638847.4574239.1340667841898.JavaMail.root@mozilla.com> Subject: perf report does not get along with perf record -A MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.20.77.200] X-Mailer: Zimbra 7.2.0_GA_2669 (ZimbraWebClient - FF3.0 (Linux)/7.2.0_GA_2669) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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