Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966807AbWKTWEb (ORCPT ); Mon, 20 Nov 2006 17:04:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S966811AbWKTWEb (ORCPT ); Mon, 20 Nov 2006 17:04:31 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:31972 "EHLO mx2.mail.elte.hu") by vger.kernel.org with ESMTP id S966807AbWKTWE3 (ORCPT ); Mon, 20 Nov 2006 17:04:29 -0500 Date: Mon, 20 Nov 2006 23:02:30 +0100 From: Ingo Molnar To: linux-kernel@vger.kernel.org Subject: 2.6.19-rc6-rt5 Message-ID: <20061120220230.GA30835@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.2i X-ELTE-SpamScore: -4.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-4.5 required=5.9 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=no SpamAssassin version=3.0.3 -3.3 ALL_TRUSTED Did not pass through any untrusted hosts -2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] 1.4 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1810 Lines: 50 i've released the 2.6.19-rc6-rt5 tree, which can be downloaded from the usual place: http://redhat.com/~mingo/realtime-preempt/ the -rt YUM repository for Fedora Core 6 can be activated via: cd /etc/yum.repos.d wget http://people.redhat.com/~mingo/realtime-preempt/rt.repo yum install kernel-rt on x86_64, do: yum install kernel-rt.x86_64 lots of fixes and improvements were done to -rt5. In particular SMP/dual-core systems should get quite a bit faster. Changes: - implemented proper per-cpu page allocation (PCP-list) in page_alloc.c, for PREEMPT_RT too. (previously this code was #ifdef-ed out and we allocated straight from the zones - but this caused the zone lock to act as a global lock) - speedup of PREEMPT_RT's implementation of atomic_dec_and_lock(). (this was a major bottleneck for workloads like kernel compiles.) - more tracer features: symbolic stack backtraces embedded in /proc/latency_trace for certain types of events, switchable syscall tracing. - irq-threading cleanups, based on the comments from Sergei Shtylyov, Daniel Walker and Benjamin Herrenschmidt. - vsyscall & tracing fixes: 'notsc' should not be required on the YUM rpms anymore. to build a 2.6.19-rc6-rt5 tree, the following patches should be applied: http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.18.tar.bz2 http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.19-rc6.bz2 http://redhat.com/~mingo/realtime-preempt/patch-2.6.19-rc6-rt5 as usual, bugreports, fixes and suggestions are welcome, Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/