Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932409AbbGJR03 (ORCPT ); Fri, 10 Jul 2015 13:26:29 -0400 Received: from resqmta-ch2-08v.sys.comcast.net ([69.252.207.40]:47265 "EHLO resqmta-ch2-08v.sys.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751286AbbGJR0X (ORCPT ); Fri, 10 Jul 2015 13:26:23 -0400 Date: Fri, 10 Jul 2015 12:26:21 -0500 (CDT) From: Christoph Lameter X-X-Sender: cl@east.gentwo.org To: Chris Mason cc: Andy Lutomirski , "ksummit-discuss@lists.linuxfoundation.org" , Peter Zijlstra , "linux-kernel@vger.kernel.org" , Jens Axboe , Mathieu Desnoyers , Shaohua Li Subject: Re: [Ksummit-discuss] [CORE TOPIC] lightweight per-cpu locks / restartable sequences In-Reply-To: <20150709190916.GI1522@ret.masoncoding.com> Message-ID: References: <20150709190916.GI1522@ret.masoncoding.com> Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 764 Lines: 19 On Thu, 9 Jul 2015, Chris Mason wrote: > I think the topic is really interesting and we'll be able to get numbers > from production workloads to help justify and compare different > approaches. Ok that would be important. I also think that the approach may be used in kernel to reduce the overhead of CONFIG_PREEMPT and also to implement fast versions of this_cpu_ops for non x86 architectures and maybe even optimize the x86 variants if interrupts also can detect critical sections and restart at defined points. -- 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/