From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Ericsson Subject: Re: Something is broken in repack Date: Tue, 11 Dec 2007 08:34:30 +0100 Message-ID: <475E3D86.9030408@op5.se> References: <9e4733910712071505y6834f040k37261d65a2d445c4@mail.gmail.com> <9e4733910712101825l33cdc2c0mca2ddbfd5afdb298@mail.gmail.com> <9e4733910712102125w56c70c0cxb8b00a060b62077@mail.gmail.com> <9e4733910712102129v140c2affqf2e73e75855b61ea@mail.gmail.com> <9e4733910712102301p5e6c4165v6afb32d157478828@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: Nicolas Pitre , Junio C Hamano , gcc@gcc.gnu.org, Git Mailing List To: Jon Smirl X-From: git-owner@vger.kernel.org Tue Dec 11 08:35:01 2007 Return-path: Envelope-to: gcvg-git-2@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1J1zds-0004xc-Ij for gcvg-git-2@gmane.org; Tue, 11 Dec 2007 08:35:01 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751965AbXLKHef (ORCPT ); Tue, 11 Dec 2007 02:34:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751735AbXLKHef (ORCPT ); Tue, 11 Dec 2007 02:34:35 -0500 Received: from mail.op5.se ([193.201.96.20]:34553 "EHLO mail.op5.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751446AbXLKHee (ORCPT ); Tue, 11 Dec 2007 02:34:34 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.op5.se (Postfix) with ESMTP id 2DE9B1F0803A; Tue, 11 Dec 2007 08:34:33 +0100 (CET) X-Virus-Scanned: amavisd-new at X-Spam-Flag: NO X-Spam-Score: -4.399 X-Spam-Level: X-Spam-Status: No, score=-4.399 tagged_above=-10 required=6.6 tests=[ALL_TRUSTED=-1.8, BAYES_00=-2.599] Received: from mail.op5.se ([127.0.0.1]) by localhost (mail.op5.se [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TPhLSj86fEpt; Tue, 11 Dec 2007 08:34:32 +0100 (CET) Received: from nox.op5.se (unknown [192.168.1.20]) by mail.op5.se (Postfix) with ESMTP id DDA561F08039; Tue, 11 Dec 2007 08:34:31 +0100 (CET) User-Agent: Thunderbird 2.0.0.9 (X11/20071115) In-Reply-To: <9e4733910712102301p5e6c4165v6afb32d157478828@mail.gmail.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Jon Smirl wrote: > Switching to the Google perftools malloc > http://goog-perftools.sourceforge.net/ > > Google allocator knocked 600MB off from memory use. > Memory consumption did not fall during the write out phase like it did with gcc. > > Since all of this is with the same code except for changing the > threading split, those runs where memory consumption went to 4.5GB > with the gcc allocator must have triggered an extreme problem with > fragmentation. > > Total CPU time 196 CPU minutes vs 190 for gcc. Google's claims of > being faster are not true. > Did you use the tcmalloc with heap checker/profiler, or tcmalloc_minimal? -- Andreas Ericsson andreas.ericsson@op5.se OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231