From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Parkins Subject: Re: Git benchmarks at OpenOffice.org wiki Date: Wed, 2 May 2007 16:30:14 +0100 Message-ID: <200705021630.16792.andyparkins@gmail.com> References: <200705012346.14997.jnareb@gmail.com> <200705021158.04481.andyparkins@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Cc: Julian Phillips , Jakub Narebski , Jan Holesovsky To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Wed May 02 17:31:02 2007 Return-path: Envelope-to: gcvg-git@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1HjGn9-0000D2-QH for gcvg-git@gmane.org; Wed, 02 May 2007 17:30:56 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2993227AbXEBPaw (ORCPT ); Wed, 2 May 2007 11:30:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S2993370AbXEBPaw (ORCPT ); Wed, 2 May 2007 11:30:52 -0400 Received: from mu-out-0910.google.com ([209.85.134.185]:15782 "EHLO mu-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2993227AbXEBPav (ORCPT ); Wed, 2 May 2007 11:30:51 -0400 Received: by mu-out-0910.google.com with SMTP id g7so170504muf for ; Wed, 02 May 2007 08:30:50 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:from:to:subject:date:user-agent:cc:references:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:message-id; b=qf2AjgoC1F77chnJRQDb/1ZTFC7JogouvfAmyZM+HiKM6Fy5qi2Fvb2vzHWxJjPNC4q0DXWEE9jb8roKrUycsqMj5JeBB+M2KMvBsLlU4sbtvllB0bShaWWzDOnhNI+6+2amqxq7/pQTwwKOsi8JZ4Uf950g3ZE/JdCyov2NTls= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:from:to:subject:date:user-agent:cc:references:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:message-id; b=mcAvH9N3UVcGL5EWGbZhpT5ulO3BLTmOTMYjlrjvr5UyoGlhcu7ZwaeNn5ld3ea2DxCdhYt+WsqBtgxNSEMkXPRjddPGwNx3qEPP+5LLXzOYydMi4wvc4XXyTVwogxNblAMMIpSRhAaPGw6GoVvzdAqQp1fNKdllcC+lvBbIsCc= Received: by 10.82.180.17 with SMTP id c17mr1640038buf.1178119849387; Wed, 02 May 2007 08:30:49 -0700 (PDT) Received: from dvr.360vision.com ( [194.70.53.227]) by mx.google.com with ESMTP id b30sm61594ika.2007.05.02.08.30.32; Wed, 02 May 2007 08:30:44 -0700 (PDT) User-Agent: KMail/1.9.6 In-Reply-To: Content-Disposition: inline Sender: git-owner@vger.kernel.org Precedence: bulk X-Mailing-List: git@vger.kernel.org Archived-At: On Wednesday 2007 May 02, Julian Phillips wrote: > oops, meant 2.7G not 8.5G there ... sorry, was working from memory. Not a problem. That fixes one ambiguity: 2.7G - 1.3G = 1.4G Which is the same as the CVS checkout size. Both the CVS and git figures are now consistent: CVS git SVN Size of data on the server 8.5G 1.3G n/a Size of checkout 1.4G 2.7G 1.5G Overhead in checkout 0G 1.3G 0.1G So that only leaves the subversion number as being suspicious. > the difference between 2.7G and 2.8G may be due to filesystem difference? Could be I suppose. Although, in that case CVS should have suffered the same because the disparity was in the source tree size. Packed git shouldn't suffer any filesystem overhead (relatively) because the majority of it's space is taken up by one large pack file (which of course only suffers file system overhead once). > I was wondering about the subversion figures too ... I've just checked using subversion 1.4.2 and the .svn/text-base/*.svn-base files are all uncompressed copies of the working tree files. Doesn't look like anythings changed in the pristine copy department. > jp3@electron: ooo(unxsplash)>ls -sh .git/objects/pack/ > total 1.3G > 37M pack-87efcac9bcb117328e8a1b0c1b42c88c3603c5b7.idx > 1.2G pack-87efcac9bcb117328e8a1b0c1b42c88c3603c5b7.pack Thanks for your help. It's all looking more consistent to me now; only the subversion figures seem wrong. I wonder when they're going to get timing numbers for the non-git systems. That must be a monster of a repository for them to deal with. Andy -- Dr Andy Parkins, M Eng (hons), MIET andyparkins@gmail.com