From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [PATCH v2 0/6] Series short description Date: Wed, 27 Aug 2008 10:33:24 +0200 Message-ID: <1219826004.6462.57.camel@twins> References: <20080825200852.23217.13842.stgit@dev.haskins.net> <20080826173131.16413.17862.stgit@dev.haskins.net> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: mingo@elte.hu, srostedt@redhat.com, linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org, npiggin@suse.de, gregory.haskins@gmail.com To: Gregory Haskins Return-path: Received: from bombadil.infradead.org ([18.85.46.34]:58037 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752944AbYH0Ido (ORCPT ); Wed, 27 Aug 2008 04:33:44 -0400 In-Reply-To: <20080826173131.16413.17862.stgit@dev.haskins.net> Sender: linux-rt-users-owner@vger.kernel.org List-ID: On Tue, 2008-08-26 at 13:34 -0400, Gregory Haskins wrote: > Hi Ingo, > > The following repositories > > git://git.kernel.org/pub/scm/linux/kernel/git/ghaskins/linux-2.6-hacks.git tip/sched/devel/rtbalance > > ftp://ftp.novell.com/dev/ghaskins/tip-rt-fixes.tar.bz2 > > apply to tip/sched/devel to pick up fixes for the RT scheduler. > > [ > Changelog: > > v2: > *) predicated newidle and double_lock changes on > CONFIG_PREEMPT to address a concern by Nick Piggin > > *) fixed a build issue when DEBUG_PI_LIST is defined > > v1: > *) initial release > ] > > These patches were developed in the interest of shorting latencies in > PREEMPT_RT, but they apply to the mainline scheduler as well, so I am > offering them here first. > > This has been tested under both 26.3-rt3 and tip/sched/devel on x86_64 for > both CONFIG_SMP and !CONFIG_SMP. > > Comments/bug-fixes welcome! Looks good to me, Acked-by: Peter Zijlstra Ingo please consider. > --- > > Gregory Haskins (6): > sched: create "pushable_tasks" list to limit pushing to one attempt > plist: fix PLIST_NODE_INIT to work with debug enabled > sched: add sched_class->needs_post_schedule() member > sched: make double-lock-balance fair > sched: pull only one task during NEWIDLE balancing to limit critical section > sched: only try to push a task on wakeup if it is migratable > > > include/linux/init_task.h | 1 > include/linux/plist.h | 9 ++- > include/linux/sched.h | 2 + > kernel/sched.c | 84 ++++++++++++++++++++++++--- > kernel/sched_rt.c | 139 ++++++++++++++++++++++++++++++++++++++------- > 5 files changed, 202 insertions(+), 33 deletions(-) > >