From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758059Ab3BSB47 (ORCPT ); Mon, 18 Feb 2013 20:56:59 -0500 Received: from szxga01-in.huawei.com ([119.145.14.64]:54600 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757872Ab3BSB46 (ORCPT ); Mon, 18 Feb 2013 20:56:58 -0500 Message-ID: <5122DBC1.6010507@huawei.com> Date: Tue, 19 Feb 2013 09:56:17 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130107 Thunderbird/17.0.2 MIME-Version: 1.0 To: Steven Rostedt CC: Sebastian Andrzej Siewior , , , Carsten Emde Subject: Re: [PREEMPT RT] SLUB and split softirq lock for v3.2-rt References: <1360771932-27150-1-git-send-email-bigeasy@linutronix.de> <1360776274.23152.7.camel@gandalf.local.home> <5122DB72.7030100@huawei.com> In-Reply-To: <5122DB72.7030100@huawei.com> Content-Type: text/plain; charset="ISO-8859-15" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.135.68.215] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2013/2/19 9:54, Li Zefan wrote: > On 2013/2/14 1:24, Steven Rostedt wrote: >> On Wed, 2013-02-13 at 17:11 +0100, Sebastian Andrzej Siewior wrote: >>> 3.2-rt is a long term supported kernel, which lacks two RT features >>> from 3.6: SLUB support and the split softirq lock implementation. >>> >>> SLUB has a way better performance than SLAB on RT and the split >>> softirq lock implementation is necessary especially for realtime >>> networking applications. >>> >>> The following patch series backports these features to 3.2-rt. >>> >>> Steven, could you please apply these patches to a separate >>> 3.2-rt-features branch? >> >> Is it possible to separate these two features into two different patch >> sets. I would like to apply the softirq changes first, and then apply >> the slub changes. >> >> Although it looks as though the first half is softirq only 1-8, and the >> second half is slub related 9-16. If that's the case, I'll just pull in >> 1-8 first, play with them, and then do 9-16. >> > > We've also ported these two features to 3.4-rt. Do you want us to post > them? > Oh ignore me. Just saw the patchset for 3.4-rt.