Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261178AbVAGDlt (ORCPT ); Thu, 6 Jan 2005 22:41:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261189AbVAGDls (ORCPT ); Thu, 6 Jan 2005 22:41:48 -0500 Received: from holomorphy.com ([207.189.100.168]:49092 "EHLO holomorphy.com") by vger.kernel.org with ESMTP id S261178AbVAGDlr (ORCPT ); Thu, 6 Jan 2005 22:41:47 -0500 Date: Thu, 6 Jan 2005 19:41:45 -0800 From: William Lee Irwin III To: torvalds@osdl.org Cc: Linux Kernel Mailing List Subject: Re: Make pipe data structure be a circular list of pages, rather than Message-ID: <20050107034145.GI9636@holomorphy.com> References: <200501070313.j073DCaQ009641@hera.kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200501070313.j073DCaQ009641@hera.kernel.org> User-Agent: Mutt/1.5.6+20040722i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 682 Lines: 16 On Fri, Jan 07, 2005 at 12:29:13AM +0000, Linux Kernel Mailing List wrote: > ChangeSet 1.2229.1.1, 2005/01/06 16:29:13-08:00, torvalds@ppc970.osdl.org > Make pipe data structure be a circular list of pages, rather than > a circular list of one page. > This improves pipe throughput, and allows us to (eventually) > use these lists of page buffers for moving data around efficiently. Interesting; how big a gain did you see? -- wli - 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/