Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269063AbUICPpC (ORCPT ); Fri, 3 Sep 2004 11:45:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269294AbUICPpB (ORCPT ); Fri, 3 Sep 2004 11:45:01 -0400 Received: from dragnfire.mtl.istop.com ([66.11.160.179]:21457 "EHLO dsl.commfireservices.com") by vger.kernel.org with ESMTP id S269066AbUICPoD (ORCPT ); Fri, 3 Sep 2004 11:44:03 -0400 Date: Fri, 3 Sep 2004 11:48:29 -0400 (EDT) From: Zwane Mwaikambo To: "Martin J. Bligh" Cc: Linux Kernel , Linus Torvalds , Andrew Morton , Matt Mackall , William Lee Irwin III , Keith Owens Subject: Re: [PATCH][0/8] Arch agnostic completely out of line locks In-Reply-To: <393510000.1094222920@[10.10.2.4]> Message-ID: References: <393510000.1094222920@[10.10.2.4]> 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: 889 Lines: 25 On Fri, 3 Sep 2004, Martin J. Bligh wrote: > > This patch achieves out of line spinlocks by creating kernel/spinlock.c > > and using the _raw_* inline locking functions. > ... > > Size differences are with CONFIG_PREEMPT enabled since we wanted to > > determine how much could be saved by moving that lot out of line too. > > So does this have no performance impact at all? or has that not been measured? No performance regression on i386 with a specific benchmark (bonnie++) http://www.zwane.ca/results/cool-locks-stp I'm going to be running benchmarks against this version of the patch, but still collecting which to run. Thanks, Zwane - 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/