From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1121 invoked by alias); 17 Dec 2009 20:19:59 -0000 Received: (qmail 1113 invoked by uid 22791); 17 Dec 2009 20:19:58 -0000 X-SWARE-Spam-Status: No, hits=-2.5 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 17 Dec 2009 20:19:53 +0000 Received: from int-mx04.intmail.prod.int.phx2.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.17]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id nBHKJpwo027050 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Thu, 17 Dec 2009 15:19:52 -0500 Received: from ns3.rdu.redhat.com (ns3.rdu.redhat.com [10.11.255.199]) by int-mx04.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id nBHKJpbo008977; Thu, 17 Dec 2009 15:19:51 -0500 Received: from opsy.redhat.com (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by ns3.rdu.redhat.com (8.13.8/8.13.8) with ESMTP id nBHKJomJ015256; Thu, 17 Dec 2009 15:19:50 -0500 Received: by opsy.redhat.com (Postfix, from userid 500) id 21E9088804E; Thu, 17 Dec 2009 13:19:50 -0700 (MST) From: Tom Tromey To: Keith Seitz Cc: gdb-patches@sourceware.org Subject: Re: [RFA 2/4] dwarf2_physname References: <4B0707E7.5010308@uglyboxes.com> <20091120220927.GA9589@caradoc.them.org> <4B1EAD5C.6060708@redhat.com> <4B2692EE.5090807@redhat.com> Reply-To: tromey@redhat.com Date: Thu, 17 Dec 2009 20:19:00 -0000 In-Reply-To: <4B2692EE.5090807@redhat.com> (Keith Seitz's message of "Mon, 14 Dec 2009 11:33:02 -0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2009-12/txt/msg00237.txt.bz2 >>>>> "Keith" == Keith Seitz writes: Keith> Okay, so I have some performance numbers for my box using CVS HEAD Keith> patched and unpatched with my dwarf2_physname patches. Thanks. It looks to me like dwarf2_physname is not significantly slower in the normal (attach and bt) cases -- only in the -readnow case. Keith> dwarf2_realname: Keith> real 774m37.623s On irc Keith suggested that this may be due to swapping. I probably wouldn't have let this test finish, myself :-) Keith> As you can see, --readnow (and by extrapolation "info func" and Keith> "info type") take an enormous performance hit. I am not concerned about this. I don't think -readnow is actually used -- I can't imagine why anyone would want to use it. And, on a big program, an unrestricted "info func" or "info type" is probably just a mistake, like hitting enter too soon. I think we should wait a bit to see if there are other comments, particularly because I imagine a lot of people are going on vacation soon. Tom