From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757841Ab3BGER1 (ORCPT ); Wed, 6 Feb 2013 23:17:27 -0500 Received: from ozlabs.org ([203.10.76.45]:50736 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756414Ab3BGERX (ORCPT ); Wed, 6 Feb 2013 23:17:23 -0500 From: Rusty Russell To: "Srivatsa S. Bhat" , tglx@linutronix.de, peterz@infradead.org, tj@kernel.org, oleg@redhat.com, paulmck@linux.vnet.ibm.com, mingo@kernel.org Cc: "Srivatsa S. Bhat" , akpm@linux-foundation.org, namhyung@kernel.org, rostedt@goodmis.org, wangyun@linux.vnet.ibm.com, xiaoguangrong@linux.vnet.ibm.com, rjw@sisk.pl, sbw@mit.edu, fweisbec@gmail.com, linux@arm.linux.org.uk, nikunj@linux.vnet.ibm.com, linux-pm@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, walken@google.com Subject: Re: [PATCH v5 00/45] CPU hotplug: stop_machine()-free CPU hotplug In-Reply-To: <510FBC01.2030405@linux.vnet.ibm.com> References: <20130122073210.13822.50434.stgit@srivatsabhat.in.ibm.com> <510FBC01.2030405@linux.vnet.ibm.com> User-Agent: Notmuch/0.14 (http://notmuchmail.org) Emacs/23.4.1 (i686-pc-linux-gnu) Date: Thu, 07 Feb 2013 14:44:27 +1030 Message-ID: <87haloiwv0.fsf@rustcorp.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org "Srivatsa S. Bhat" writes: > On 01/22/2013 01:03 PM, Srivatsa S. Bhat wrote: > Avg. latency of 1 CPU offline (ms) [stop-cpu/stop-m/c latency] > > # online CPUs Mainline (with stop-m/c) This patchset (no stop-m/c) > > 8 17.04 7.73 > > 16 18.05 6.44 > > 32 17.31 7.39 > > 64 32.40 9.28 > > 128 98.23 7.35 Nice! I wonder how the ARM guys feel with their quad-cpu systems... Thanks! Rusty. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rusty Russell Subject: Re: [PATCH v5 00/45] CPU hotplug: stop_machine()-free CPU hotplug Date: Thu, 07 Feb 2013 14:44:27 +1030 Message-ID: <87haloiwv0.fsf@rustcorp.com.au> References: <20130122073210.13822.50434.stgit@srivatsabhat.in.ibm.com> <510FBC01.2030405@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from ozlabs.org ([203.10.76.45]:50736 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756414Ab3BGERX (ORCPT ); Wed, 6 Feb 2013 23:17:23 -0500 In-Reply-To: <510FBC01.2030405@linux.vnet.ibm.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: tglx@linutronix.de, peterz@infradead.org, tj@kernel.org, oleg@redhat.com, paulmck@linux.vnet.ibm.com, mingo@kernel.org Cc: "Srivatsa S. Bhat" , akpm@linux-foundation.org, namhyung@kernel.org, rostedt@goodmis.org, wangyun@linux.vnet.ibm.com, xiaoguangrong@linux.vnet.ibm.com, rjw@sisk.pl, sbw@mit.edu, fweisbec@gmail.com, linux@arm.linux.org.uk, nikunj@linux.vnet.ibm.com, linux-pm@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, walken@google.com "Srivatsa S. Bhat" writes: > On 01/22/2013 01:03 PM, Srivatsa S. Bhat wrote: > Avg. latency of 1 CPU offline (ms) [stop-cpu/stop-m/c latency] > > # online CPUs Mainline (with stop-m/c) This patchset (no stop-m/c) > > 8 17.04 7.73 > > 16 18.05 6.44 > > 32 17.31 7.39 > > 64 32.40 9.28 > > 128 98.23 7.35 Nice! I wonder how the ARM guys feel with their quad-cpu systems... Thanks! Rusty. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org ([203.10.76.45]:50736 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756414Ab3BGERX (ORCPT ); Wed, 6 Feb 2013 23:17:23 -0500 From: Rusty Russell Subject: Re: [PATCH v5 00/45] CPU hotplug: stop_machine()-free CPU hotplug In-Reply-To: <510FBC01.2030405@linux.vnet.ibm.com> References: <20130122073210.13822.50434.stgit@srivatsabhat.in.ibm.com> <510FBC01.2030405@linux.vnet.ibm.com> Date: Thu, 07 Feb 2013 14:44:27 +1030 Message-ID: <87haloiwv0.fsf@rustcorp.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-arch-owner@vger.kernel.org List-ID: To: "Srivatsa S. Bhat" , tglx@linutronix.de, peterz@infradead.org, tj@kernel.org, oleg@redhat.com, paulmck@linux.vnet.ibm.com, mingo@kernel.org Cc: akpm@linux-foundation.org, namhyung@kernel.org, rostedt@goodmis.org, wangyun@linux.vnet.ibm.com, xiaoguangrong@linux.vnet.ibm.com, rjw@sisk.pl, sbw@mit.edu, fweisbec@gmail.com, linux@arm.linux.org.uk, nikunj@linux.vnet.ibm.com, linux-pm@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, walken@google.com Message-ID: <20130207041427.bPB3NTkb5vS91MSR_UrMesmTy5TqS0Ec9P828niffWE@z> "Srivatsa S. Bhat" writes: > On 01/22/2013 01:03 PM, Srivatsa S. Bhat wrote: > Avg. latency of 1 CPU offline (ms) [stop-cpu/stop-m/c latency] > > # online CPUs Mainline (with stop-m/c) This patchset (no stop-m/c) > > 8 17.04 7.73 > > 16 18.05 6.44 > > 32 17.31 7.39 > > 64 32.40 9.28 > > 128 98.23 7.35 Nice! I wonder how the ARM guys feel with their quad-cpu systems... Thanks! Rusty. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Rusty Russell To: "Srivatsa S. Bhat" , tglx@linutronix.de, peterz@infradead.org, tj@kernel.org, oleg@redhat.com, paulmck@linux.vnet.ibm.com, mingo@kernel.org Subject: Re: [PATCH v5 00/45] CPU hotplug: stop_machine()-free CPU hotplug In-Reply-To: <510FBC01.2030405@linux.vnet.ibm.com> References: <20130122073210.13822.50434.stgit@srivatsabhat.in.ibm.com> <510FBC01.2030405@linux.vnet.ibm.com> Date: Thu, 07 Feb 2013 14:44:27 +1030 Message-ID: <87haloiwv0.fsf@rustcorp.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-arch@vger.kernel.org, linux@arm.linux.org.uk, nikunj@linux.vnet.ibm.com, linux-pm@vger.kernel.org, fweisbec@gmail.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, rostedt@goodmis.org, xiaoguangrong@linux.vnet.ibm.com, rjw@sisk.pl, sbw@mit.edu, wangyun@linux.vnet.ibm.com, "Srivatsa S. Bhat" , netdev@vger.kernel.org, namhyung@kernel.org, akpm@linux-foundation.org, walken@google.com, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , "Srivatsa S. Bhat" writes: > On 01/22/2013 01:03 PM, Srivatsa S. Bhat wrote: > Avg. latency of 1 CPU offline (ms) [stop-cpu/stop-m/c latency] > > # online CPUs Mainline (with stop-m/c) This patchset (no stop-m/c) > > 8 17.04 7.73 > > 16 18.05 6.44 > > 32 17.31 7.39 > > 64 32.40 9.28 > > 128 98.23 7.35 Nice! I wonder how the ARM guys feel with their quad-cpu systems... Thanks! Rusty. From mboxrd@z Thu Jan 1 00:00:00 1970 From: rusty@rustcorp.com.au (Rusty Russell) Date: Thu, 07 Feb 2013 14:44:27 +1030 Subject: [PATCH v5 00/45] CPU hotplug: stop_machine()-free CPU hotplug In-Reply-To: <510FBC01.2030405@linux.vnet.ibm.com> References: <20130122073210.13822.50434.stgit@srivatsabhat.in.ibm.com> <510FBC01.2030405@linux.vnet.ibm.com> Message-ID: <87haloiwv0.fsf@rustcorp.com.au> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org "Srivatsa S. Bhat" writes: > On 01/22/2013 01:03 PM, Srivatsa S. Bhat wrote: > Avg. latency of 1 CPU offline (ms) [stop-cpu/stop-m/c latency] > > # online CPUs Mainline (with stop-m/c) This patchset (no stop-m/c) > > 8 17.04 7.73 > > 16 18.05 6.44 > > 32 17.31 7.39 > > 64 32.40 9.28 > > 128 98.23 7.35 Nice! I wonder how the ARM guys feel with their quad-cpu systems... Thanks! Rusty.