From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10189 invoked by alias); 28 May 2013 15:25:22 -0000 Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org Received: (qmail 10176 invoked by uid 89); 28 May 2013 15:25:22 -0000 X-Spam-SWARE-Status: No, score=-3.3 required=5.0 tests=AWL,BAYES_00,KHOP_THREADED,RCVD_IN_DNSWL_NONE,RCVD_IN_HOSTKARMA_YE,SPF_PASS autolearn=ham version=3.3.1 Received: from oproxy13-pub.unifiedlayer.com (HELO oproxy13-pub.unifiedlayer.com) (69.89.16.30) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with SMTP; Tue, 28 May 2013 15:25:15 +0000 Received: (qmail 29036 invoked by uid 0); 28 May 2013 15:25:13 -0000 Received: from unknown (HELO box531.bluehost.com) (74.220.219.131) by oproxy13.unifiedlayer.com with SMTP; 28 May 2013 15:25:13 -0000 Received: from [173.9.45.73] (port=51421 helo=[10.1.37.145]) by box531.bluehost.com with esmtpsa (SSLv3:CAMELLIA256-SHA:256) (Exim 4.80) (envelope-from ) id 1UhLlw-0003J4-9N; Tue, 28 May 2013 09:25:12 -0600 Message-ID: <1369754705.3295.8.camel@pdsdesk> Subject: Re: [GDB 7.6/GCC 4.8.0] Slowdown in GDB macro processing for cores? From: Paul Smith Reply-To: paul@mad-scientist.net To: Tom Tromey Cc: Pedro Alves , gdb@sourceware.org Date: Tue, 28 May 2013 15:25:00 -0000 In-Reply-To: <1369264444.7209.184.camel@homebase> References: <1368733335.4101.743.camel@pdsdesk> <51960329.2010802@redhat.com> <1369248335.7209.151.camel@homebase> <1369250399.7209.164.camel@homebase> <87wqqqg4e2.fsf@fleche.redhat.com> <1369264444.7209.184.camel@homebase> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Identified-User: {678:box531.bluehost.com:madscie1:mad-scientist.us} {sentby:smtp auth 173.9.45.73 authed with paul+mad-scientist.us} X-SW-Source: 2013-05/txt/msg00121.txt.bz2 On Wed, 2013-05-22 at 19:14 -0400, Paul Smith wrote: > On Wed, 2013-05-22 at 14:12 -0600, Tom Tromey wrote: > > >>>>> "Paul" == Paul Smith writes: > > > > Paul> The interesting thing is both versions are constantly seeking and > > Paul> reading to exactly the same location, over and over again. However GDB > > Paul> 4.6 does it many times more than GDB 7.5.1. For example, I get this > > Paul> combo: > > I have gmon.out from the last "fast" commit and the first "slow" commit; > I reduced the number of iterations in the macro to 4 (instead of 200) so > the slow one would not take so long :-). > > At this point I'm out of ideas. Please let me know if there's more > you'd like me to do... Hi all. I think I'm going to have to back up to GDB 7.5.1; the pain is too great, when it does happen. I'll maintain the core file and test setup, so let me know if there's anything else I can do to help resolve this issue, or if there are patches you'd like me to try. Cheers!