Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753854Ab3DVVbR (ORCPT ); Mon, 22 Apr 2013 17:31:17 -0400 Received: from mb1i1mx.ns.pitt.edu ([136.142.11.141]:39874 "EHLO mb1i1.ns.pitt.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752630Ab3DVVbQ (ORCPT ); Mon, 22 Apr 2013 17:31:16 -0400 Date: Mon, 22 Apr 2013 17:31:14 -0400 From: Jiannan Ouyang Subject: Re: Preemptable Ticket Spinlock In-reply-to: <1366664138.8337.18.camel@laptop> To: Peter Zijlstra Cc: Rik van Riel , LKML , Raghavendra K T , Avi Kivity , Gleb Natapov , Ingo Molnar , Marcelo Tosatti , Srikar , "H. Peter Anvin" , "Nikunj A. Dadhania" , KVM , Thomas Gleixner , Chegu Vinod , "Andrew M. Theurer" , Srivatsa Vaddagiri , Andrew Jones , Karen Noel Message-id: MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 References: <51745650.9050204@redhat.com> <1366631460.4443.3.camel@laptop> <51753289.70406@redhat.com> <1366660147.6454.6.camel@laptop> <517595FA.800@redhat.com> <1366661294.6454.18.camel@laptop> <1366664138.8337.18.camel@laptop> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 667 Lines: 16 On Mon, Apr 22, 2013 at 4:55 PM, Peter Zijlstra wrote: > > Which pv_lock? The current pv spinlock mess is basically the old unfair > thing. The later patch series I referred to earlier implemented a > paravirt ticket lock, that should perform much better under overcommit. > Yes, it is a paravirt *ticket* spinck. I got the patch from Raghavendra K T through email http://lwn.net/Articles/495597/ -- 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/