From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Alex Riesen" Subject: Re: What's cooking in git.git (topics) Date: Fri, 5 Jan 2007 10:37:08 +0100 Message-ID: <81b0412b0701050137g49d07c8aw2ce6938dfcef1646@mail.gmail.com> References: <7vwt4647g0.fsf@assigned-by-dhcp.cox.net> <81b0412b0701041022h30cd4fcxd62dbf3ecb504ea9@mail.gmail.com> <20070105025921.GA14042@spearce.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: "Junio C Hamano" , git@vger.kernel.org X-From: git-owner@vger.kernel.org Fri Jan 05 10:37:45 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 1H2lVy-0003YI-DZ for gcvg-git@gmane.org; Fri, 05 Jan 2007 10:37:30 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161028AbXAEJhM (ORCPT ); Fri, 5 Jan 2007 04:37:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161021AbXAEJhM (ORCPT ); Fri, 5 Jan 2007 04:37:12 -0500 Received: from ug-out-1314.google.com ([66.249.92.175]:52442 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161028AbXAEJhK (ORCPT ); Fri, 5 Jan 2007 04:37:10 -0500 Received: by ug-out-1314.google.com with SMTP id 44so5655779uga for ; Fri, 05 Jan 2007 01:37:08 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=UJEsOpPabWAN8yc61RTYPpjRVRycFI0trzXz0/ArNZcpczDCeS+Geif/YcDRw40FW1ENz31kpAEyW6MZT+Wfj2jUeD18c+Uqgbd9Hmt+N21pzWzsTRJ9nMg04CVIOQBMX8zMYHHBvfQcyraATCQlW7aQQMl/tXPbjgyWCQTwv9g= Received: by 10.78.158.11 with SMTP id g11mr2879678hue.1167989828728; Fri, 05 Jan 2007 01:37:08 -0800 (PST) Received: by 10.78.135.3 with HTTP; Fri, 5 Jan 2007 01:37:08 -0800 (PST) To: "Shawn O. Pearce" In-Reply-To: <20070105025921.GA14042@spearce.org> Content-Disposition: inline Sender: git-owner@vger.kernel.org Precedence: bulk X-Mailing-List: git@vger.kernel.org Archived-At: On 1/5/07, Shawn O. Pearce wrote: > > >* sp/mmap (Sat Dec 30 22:13:43 2006 -0500) 25 commits > > > > Running this and the merge-recursive speedup I sent today locally. > > sp/mmap needs relatively recent cygwin library (otherwise pread > > is broken). No other ill effects noticed. Perfomance is bearable. > > The default on Cygwin is now NO_MMAP. I've disabled that default I left it at NO_MMAP: wanted to see how bad pread performs. No worse than mmap, as it seems. > in my own Cygwin environment and continue to use mmap() rather than > pread(), but I'm also running my sp/mmap change there. I haven't > noticed a performance difference, but I also haven't tested for one. > IOW if there is a difference its close enough to noise to not be > visible to me as a user. Confirm that.