From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754097Ab3FBQaK (ORCPT ); Sun, 2 Jun 2013 12:30:10 -0400 Received: from mb2i1mx.ns.pitt.edu ([136.142.11.142]:52990 "EHLO mb2i1.ns.pitt.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753931Ab3FBQaE (ORCPT ); Sun, 2 Jun 2013 12:30:04 -0400 X-Greylist: delayed 567 seconds by postgrey-1.27 at vger.kernel.org; Sun, 02 Jun 2013 12:30:04 EDT Date: Sun, 02 Jun 2013 09:20:34 -0700 From: Jiannan Ouyang Subject: Re: [PATCH RFC V9 0/19] Paravirtualized ticket spinlocks In-reply-to: <20130602080739.GA24773@redhat.com> To: Gleb Natapov Cc: Raghavendra K T , Ingo Molnar , Jeremy Fitzhardinge , x86@kernel.org, konrad.wilk@oracle.com, "H. Peter Anvin" , pbonzini@redhat.com, linux-doc@vger.kernel.org, "Andrew M. Theurer" , xen-devel@lists.xensource.com, Peter Zijlstra , Marcelo Tosatti , stefano.stabellini@eu.citrix.com, andi@firstfloor.org, attilio.rao@citrix.com, Jiannan Ouyang , gregkh@suse.de, agraf@suse.de, chegu vinod , torvalds@linux-foundation.org, Avi Kivity , Thomas Gleixner , KVM , LKML , stephan.diestelhorst@amd.com, Rik van Riel , Andrew Jones , virtualization@lists.linux-foundation.org, Srivatsa Vaddagiri Message-id: MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 References: <20130601192125.5966.35563.sendpatchset@codeblue> <20130602080739.GA24773@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jun 2, 2013 at 1:07 AM, Gleb Natapov wrote: > High level question here. We have a big hope for "Preemptable Ticket > Spinlock" patch series by Jiannan Ouyang to solve most, if not all, > ticketing spinlocks in overcommit scenarios problem without need for PV. > So how this patch series compares with his patches on PLE enabled processors? > No experiment results yet. An error is reported on a 20 core VM. I'm during an internship relocation, and will start work on it next week. -- Jiannan From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiannan Ouyang Subject: Re: [PATCH RFC V9 0/19] Paravirtualized ticket spinlocks Date: Sun, 02 Jun 2013 09:20:34 -0700 Message-ID: References: <20130601192125.5966.35563.sendpatchset@codeblue> <20130602080739.GA24773@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: Raghavendra K T , Ingo Molnar , Jeremy Fitzhardinge , x86@kernel.org, konrad.wilk@oracle.com, "H. Peter Anvin" , pbonzini@redhat.com, linux-doc@vger.kernel.org, "Andrew M. Theurer" , xen-devel@lists.xensource.com, Peter Zijlstra , Marcelo Tosatti , stefano.stabellini@eu.citrix.com, andi@firstfloor.org, attilio.rao@citrix.com, Jiannan Ouyang , gregkh@suse.de, agraf@suse.de, chegu vinod , torvalds@linux-foundation.org, Avi Kivity , Thomas Gleixner , KVM , LKML , stephan.diestelhorst@amd.com, Rik van Riel , Andrew Jones , virtualization@lists.linux- To: Gleb Natapov Return-path: Received: from mb2i1mx.ns.pitt.edu ([136.142.11.142]:52990 "EHLO mb2i1.ns.pitt.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753931Ab3FBQaE (ORCPT ); Sun, 2 Jun 2013 12:30:04 -0400 In-reply-to: <20130602080739.GA24773@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Sun, Jun 2, 2013 at 1:07 AM, Gleb Natapov wrote: > High level question here. We have a big hope for "Preemptable Ticket > Spinlock" patch series by Jiannan Ouyang to solve most, if not all, > ticketing spinlocks in overcommit scenarios problem without need for PV. > So how this patch series compares with his patches on PLE enabled processors? > No experiment results yet. An error is reported on a 20 core VM. I'm during an internship relocation, and will start work on it next week. -- Jiannan