From mboxrd@z Thu Jan 1 00:00:00 1970 From: Petr Baudis Subject: Re: [PATCH] Script for automated historical Git tree grafting Date: Sat, 8 Apr 2006 05:09:36 +0200 Message-ID: <20060408030936.GN27631@pasky.or.cz> References: <20060407004728.GA16588@pasky.or.cz> <20060406175246.3bd1c972.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: torvalds@osdl.org, linux-kernel@vger.kernel.org, git@vger.kernel.org X-From: git-owner@vger.kernel.org Sat Apr 08 05:08:52 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 1FS3ob-00064J-BF for gcvg-git@gmane.org; Sat, 08 Apr 2006 05:08:46 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965003AbWDHDIl (ORCPT ); Fri, 7 Apr 2006 23:08:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965008AbWDHDIl (ORCPT ); Fri, 7 Apr 2006 23:08:41 -0400 Received: from w241.dkm.cz ([62.24.88.241]:9109 "EHLO machine.or.cz") by vger.kernel.org with ESMTP id S965006AbWDHDIk (ORCPT ); Fri, 7 Apr 2006 23:08:40 -0400 Received: (qmail 29258 invoked by uid 2001); 8 Apr 2006 05:09:36 +0200 To: Andrew Morton Content-Disposition: inline In-Reply-To: <20060406175246.3bd1c972.akpm@osdl.org> X-message-flag: Outlook : A program to spread viri, but it can do mail too. User-Agent: Mutt/1.5.11 Sender: git-owner@vger.kernel.org Precedence: bulk X-Mailing-List: git@vger.kernel.org Archived-At: Dear diary, on Fri, Apr 07, 2006 at 02:52:46AM CEST, I got a letter where Andrew Morton said that... > Petr Baudis wrote: > > > > This script enables Git users to easily graft the historical Git tree > > (Bitkeeper history import) to the current history. > > What impact will that have on the (already rather poor) performance of > git-whatchanged, gitk, etc? Negative. ;-) I didn't try gitk myself, but according to Nick Riviera it eats 1.6G... Otherwise, assuming that you have at least git-1.2.5, git-whatchanged on the whole tree should be roughly equally fast as it was before grafting, but git-whatchanged on individual paths is _significantly_ slower. That said, 1.3.0rc2 should already have Linus' optimization which should fix or at least mitigate the performance hit on narrowed-down git-whatchanged. -- Petr "Pasky" Baudis Stuff: http://pasky.or.cz/ Right now I am having amnesia and deja-vu at the same time. I think I have forgotten this before.