From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ronan Keryell Subject: Re: Index format v5 Date: Thu, 03 May 2012 11:21:22 -0700 Message-ID: <87ehr15dnh.fsf@an-dro.info.enstb.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: git@vger.kernel.org To: Thomas Gummerer X-From: git-owner@vger.kernel.org Thu May 03 20:32:01 2012 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1SQ0op-0007Gc-3Q for gcvg-git-2@plane.gmane.org; Thu, 03 May 2012 20:31:59 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757942Ab2ECSbz (ORCPT ); Thu, 3 May 2012 14:31:55 -0400 Received: from minou.info.enstb.org ([193.50.97.146]:49881 "EHLO minou.info.enstb.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753863Ab2ECSby (ORCPT ); Thu, 3 May 2012 14:31:54 -0400 X-Greylist: delayed 626 seconds by postgrey-1.27 at vger.kernel.org; Thu, 03 May 2012 14:31:53 EDT Received: from an-dro.info.enstb.org (localhost [127.0.0.1]) by minou.info.enstb.org (8.14.4/8.14.4/Debian-2) with ESMTP id q43ILMRp023885; Thu, 3 May 2012 20:21:24 +0200 In-Reply-To: (Thomas Gummerer's message of "Thu, 3 May 2012 19:25:12 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux) Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: >>>>> On Thu, 3 May 2012 19:25:12 +0200, Thomas Gummerer said: Thomas> I have been drafting the Version 5 of the index format over Thomas> the past few days with the help of Thomas Rast, Michael Thomas> Haggerty, cmn and barrbrain on IRC. It will save with prefix Thomas> compression on the path, and using a crc32 over the stat Thomas> data, instead of the full data, since it is only used for Thomas> checking if the file is changed. (Thanks Michael Haggerty Thomas> for this hint. Unless we are missing something this will Thomas> save another ~4 MB on the Webkit index. Great! But I wonder whether it may not worth to investigate a 64-bit version for the offsets and so on, just in case... -- Ronan KERYELL |\/ Phone: +1 408 658 9453 Wild Systems / HPC Project |/) 5201 Great America Parkway, Suite 320 K Ronan.Keryell@wild-systems.com Santa Clara, CA 95054 |\ skype:keryell USA | \ http://wild-systems.com