Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751968AbZAFQZH (ORCPT ); Tue, 6 Jan 2009 11:25:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750845AbZAFQYx (ORCPT ); Tue, 6 Jan 2009 11:24:53 -0500 Received: from acsinet11.oracle.com ([141.146.126.233]:58167 "EHLO acsinet11.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750753AbZAFQYw (ORCPT ); Tue, 6 Jan 2009 11:24:52 -0500 Subject: Re: [PATCH][RFC]: mutex: adaptive spin From: Chris Mason To: Peter Zijlstra Cc: Matthew Wilcox , Andi Kleen , Andrew Morton , linux-kernel@vger.kernel.org, linux-fsdevel , linux-btrfs , Ingo Molnar , Thomas Gleixner , Steven Rostedt , Gregory Haskins , Nick Piggin , Linus Torvalds In-Reply-To: <1231242031.11687.97.camel@twins> References: <1230722935.4680.5.camel@think.oraclecorp.com> <20081231104533.abfb1cf9.akpm@linux-foundation.org> <1230765549.7538.8.camel@think.oraclecorp.com> <87r63ljzox.fsf@basil.nowhere.org> <20090103191706.GA2002@parisc-linux.org> <1231093310.27690.5.camel@twins> <20090104184103.GE2002@parisc-linux.org> <1231242031.11687.97.camel@twins> Content-Type: text/plain Date: Tue, 06 Jan 2009 11:23:43 -0500 Message-Id: <1231259023.4290.159.camel@think.oraclecorp.com> Mime-Version: 1.0 X-Mailer: Evolution 2.24.1 Content-Transfer-Encoding: 7bit X-Source-IP: acsmt704.oracle.com [141.146.40.82] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A010201.49638594.009E:SCFSTAT928724,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 643 Lines: 18 On Tue, 2009-01-06 at 12:40 +0100, Peter Zijlstra wrote: > Subject: mutex: adaptive spin > From: Peter Zijlstra > Date: Tue Jan 06 12:32:12 CET 2009 > > Based on the code in -rt, provide adaptive spins on generic mutexes. I already sent Peter details, but the patch has problems without mutex debugging turned on. So it isn't quite ready for benchmarking yet. -chris -- 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/