Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261616AbVDZUgg (ORCPT ); Tue, 26 Apr 2005 16:36:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261595AbVDZUgg (ORCPT ); Tue, 26 Apr 2005 16:36:36 -0400 Received: from prgy-npn1.prodigy.com ([207.115.54.37]:22156 "EHLO oddball.prodigy.com") by vger.kernel.org with ESMTP id S261616AbVDZUa7 (ORCPT ); Tue, 26 Apr 2005 16:30:59 -0400 Message-ID: <426EA4D7.9080008@tmr.com> Date: Tue, 26 Apr 2005 16:30:15 -0400 From: Bill Davidsen User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050319 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "H. Peter Anvin" CC: Linus Torvalds , Mike Taht , Matt Mackall , linux-kernel , git@vger.kernel.org Subject: Re: Mercurial 0.3 vs git benchmarks References: <426E852A.40904@zytor.com> In-Reply-To: <426E852A.40904@zytor.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 974 Lines: 28 H. Peter Anvin wrote: > Linus Torvalds wrote: > >> >> And don't try to make me explain why the patchbomb has any IO time at >> all, >> it should all have fit in the cache, but I think the writeback logic >> kicked in. > > > The default log size on ext3 is quite small. Making the log larger > probably would have helped. Experience tells me that making the log larger does very good things for performance in many load types. However, that fsync issue forcing the write of the whole log may get worse if there's a lot pending. I suspect this would be helped by noatime. -- -bill davidsen (davidsen@tmr.com) "The secret to procrastination is to put things off until the last possible moment - but no longer" -me - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/