From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Zhang, Yanmin" Subject: Re: [PATCH 00/28] mm: preemptibility -v3 Date: Tue, 29 Jun 2010 15:40:19 +0800 Message-ID: <1277797219.2096.884.camel@ymzhang.sh.intel.com> References: <20100607110654.606530953@chello.nl> <1276134311.2096.438.camel@ymzhang.sh.intel.com> <1276152750.2046.2485.camel@twins> <1276153198.2096.465.camel@ymzhang.sh.intel.com> <1277115718.1875.490.camel@laptop> <1277373331.1875.940.camel@laptop> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1277373331.1875.940.camel@laptop> Sender: linux-kernel-owner@vger.kernel.org To: Peter Zijlstra Cc: Andrea Arcangeli , Avi Kivity , Thomas Gleixner , Rik van Riel , Ingo Molnar , akpm@linux-foundation.org, Linus Torvalds , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Benjamin Herrenschmidt , David Miller , Hugh Dickins , Mel Gorman , Nick Piggin , "Paul E.McKenney" List-Id: linux-arch.vger.kernel.org On Thu, 2010-06-24 at 11:55 +0200, Peter Zijlstra wrote: > On Mon, 2010-06-21 at 12:21 +0200, Peter Zijlstra wrote: > > On Thu, 2010-06-10 at 14:59 +0800, Zhang, Yanmin wrote: > > > > > > > I applied it against 2.6.35-rc2 on x86_64 machine, but kernel booting panic. > > > > > > > > > > Oi, that's no good. Happen to have your .config handy, I didn't actually > > > > see my machine do that. > > > > > See the attachment. > > > > That .config build and booted on my x86_64 machine, no funnies there. > > > > I pushed a git tree out to kernel.org but somehow its refusing to show > > up on git.kernel.org.. > > git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-mmu_preempt.git mmu_preempt We tested the tree on many machines with many benchmarks. Comparing with pure kernel 2.6.35-rc3, there is no clear performance regression/improvement. We didn't run into panic again. Yanmin From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga09.intel.com ([134.134.136.24]:21014 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753919Ab0F2Hj7 (ORCPT ); Tue, 29 Jun 2010 03:39:59 -0400 Subject: Re: [PATCH 00/28] mm: preemptibility -v3 From: "Zhang, Yanmin" In-Reply-To: <1277373331.1875.940.camel@laptop> References: <20100607110654.606530953@chello.nl> <1276134311.2096.438.camel@ymzhang.sh.intel.com> <1276152750.2046.2485.camel@twins> <1276153198.2096.465.camel@ymzhang.sh.intel.com> <1277115718.1875.490.camel@laptop> <1277373331.1875.940.camel@laptop> Content-Type: text/plain; charset="ISO-8859-1" Date: Tue, 29 Jun 2010 15:40:19 +0800 Message-ID: <1277797219.2096.884.camel@ymzhang.sh.intel.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-arch-owner@vger.kernel.org List-ID: To: Peter Zijlstra Cc: Andrea Arcangeli , Avi Kivity , Thomas Gleixner , Rik van Riel , Ingo Molnar , akpm@linux-foundation.org, Linus Torvalds , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Benjamin Herrenschmidt , David Miller , Hugh Dickins , Mel Gorman , Nick Piggin , "Paul E.McKenney" Message-ID: <20100629074019.iidQQQMb89ExgA1hOCaPDFGvnLVADomZiP5eJNAhWnU@z> On Thu, 2010-06-24 at 11:55 +0200, Peter Zijlstra wrote: > On Mon, 2010-06-21 at 12:21 +0200, Peter Zijlstra wrote: > > On Thu, 2010-06-10 at 14:59 +0800, Zhang, Yanmin wrote: > > > > > > > I applied it against 2.6.35-rc2 on x86_64 machine, but kernel booting panic. > > > > > > > > > > Oi, that's no good. Happen to have your .config handy, I didn't actually > > > > see my machine do that. > > > > > See the attachment. > > > > That .config build and booted on my x86_64 machine, no funnies there. > > > > I pushed a git tree out to kernel.org but somehow its refusing to show > > up on git.kernel.org.. > > git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-mmu_preempt.git mmu_preempt We tested the tree on many machines with many benchmarks. Comparing with pure kernel 2.6.35-rc3, there is no clear performance regression/improvement. We didn't run into panic again. Yanmin