From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicolas Pitre Subject: Re: observations on parsecvs testing Date: Thu, 15 Jun 2006 16:55:38 -0400 (EDT) Message-ID: References: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Content-Transfer-Encoding: 7BIT Cc: keithp@keithp.com, git@vger.kernel.org X-From: git-owner@vger.kernel.org Thu Jun 15 22:56:05 2006 Return-path: Envelope-to: gcvg-git@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by ciao.gmane.org with esmtp (Exim 4.43) id 1FqysY-0007Kg-6u for gcvg-git@gmane.org; Thu, 15 Jun 2006 22:55:50 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031351AbWFOUzj (ORCPT ); Thu, 15 Jun 2006 16:55:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1031350AbWFOUzj (ORCPT ); Thu, 15 Jun 2006 16:55:39 -0400 Received: from relais.videotron.ca ([24.201.245.36]:20982 "EHLO relais.videotron.ca") by vger.kernel.org with ESMTP id S1031349AbWFOUzi (ORCPT ); Thu, 15 Jun 2006 16:55:38 -0400 Received: from xanadu.home ([74.56.108.184]) by VL-MH-MR002.ip.videotron.ca (Sun Java System Messaging Server 6.2-2.05 (built Apr 28 2005)) with ESMTP id <0J0X00HAS64QG200@VL-MH-MR002.ip.videotron.ca> for git@vger.kernel.org; Thu, 15 Jun 2006 16:55:38 -0400 (EDT) In-reply-to: X-X-Sender: nico@localhost.localdomain To: Sean Sender: git-owner@vger.kernel.org Precedence: bulk X-Mailing-List: git@vger.kernel.org Archived-At: On Thu, 15 Jun 2006, Sean wrote: > On Thu, 15 Jun 2006 16:37:30 -0400 (EDT) > Nicolas Pitre wrote: > > > Also rcs2git() is very inefficient especially with files having many > > revisions as it reconstructs the delta chain on every call. For example > > mozilla/configure,v has at least 1690 revisions, and actually converting > > it into GIT blobs goes at a rate of 2.4 objects per second _only_ on my > > machine. Can't objects be created as the delta list is walked/applied > > instead? That would significantly reduce the initial convertion time. > > Hi Nicolas, > > That was a planned optimization which I did mention to Keith previously. > Was kinda waiting to hear back how it was working for him, and if there > was an interest to put more work into it to include in his mainline. I think it is really worth it. I'd expect the first half of the convertion to go significantly faster then. Nicolas