Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966653Ab2JZWIF (ORCPT ); Fri, 26 Oct 2012 18:08:05 -0400 Received: from www.linutronix.de ([62.245.132.108]:36347 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933198Ab2JZWIC (ORCPT ); Fri, 26 Oct 2012 18:08:02 -0400 Date: Sat, 27 Oct 2012 00:08:00 +0200 (CEST) From: Thomas Gleixner To: LKML cc: linux-rt-users , Christoph Lameter Subject: Re: [ANNOUNCE] 3.6.3-rt7 In-Reply-To: Message-ID: References: User-Agent: Alpine 2.02 (LFD 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1349 Lines: 37 On Fri, 26 Oct 2012, Thomas Gleixner wrote: > Dear RT Folks, > > I'm pleased to announce the 3.6.3-rt7 release. > > Changes since 3.6.3-rt6: > > * Enable SLUB for RT > > Last time I looked at SLUB for RT (some years ago) it was just > way more painful than dealing with SLAB, but Christoph Lameter > has done major surgery on the SLUB code since then and it turns > out that making SLUB usable for RT has become very simple. Thanks > Christoph! > > slab.c: 172 insertions(+), 58 deletions(-) > slub.c: 17 insertions(+), 13 deletions(-) > > I did some quick comparisons and even a simple hackbench run > shows a significant speedup with SLUB vs. SLAB on RT. I'm not too > surprised as SLUBs fastpath does not have the RT induced > contention problems which we can observe with SLAB. > > As usual, give it a good testing and report whatever explodes :) Looks like CONFIG_NUMA=y exposes explosions. I just noticed that none of the machines which are in my basic set of test systems have that enabled. /me goes to do some homework -- 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/