Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261266AbVAGGhW (ORCPT ); Fri, 7 Jan 2005 01:37:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261267AbVAGGhV (ORCPT ); Fri, 7 Jan 2005 01:37:21 -0500 Received: from fw.osdl.org ([65.172.181.6]:30366 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S261266AbVAGGhM (ORCPT ); Fri, 7 Jan 2005 01:37:12 -0500 Date: Thu, 6 Jan 2005 22:37:10 -0800 (PST) From: Linus Torvalds To: William Lee Irwin III cc: Linux Kernel Mailing List , Larry McVoy Subject: Re: Make pipe data structure be a circular list of pages, rather than In-Reply-To: Message-ID: References: <200501070313.j073DCaQ009641@hera.kernel.org> <20050107034145.GI9636@holomorphy.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 678 Lines: 18 On Thu, 6 Jan 2005, Linus Torvalds wrote: > > I worried a bit about latency, but my test-run of four before/after was in > the noise. It's bound to be worse because of the extra allocation, but > it's not clearly visible. Btw, this is not to say that it isn't measurable: I'm sure it is. It's just not as _obvious_ as the throughput improvement. If somebody were to do some more controlled latency tests... Hint, hint. Linus - 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/