Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754081Ab1DONBE (ORCPT ); Fri, 15 Apr 2011 09:01:04 -0400 Received: from cantor.suse.de ([195.135.220.2]:34139 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753579Ab1DONBD (ORCPT ); Fri, 15 Apr 2011 09:01:03 -0400 Subject: Re: Regression from 2.6.36 From: Mel Gorman To: azurIt Cc: Andrew Morton , Eric Dumazet , Changli Gao , Am?rico Wang , Jiri Slaby , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Jiri Slaby In-Reply-To: <20110415133644.12504ADB@pobox.sk> References: <1302178426.3357.34.camel@edumazet-laptop> <1302190586.3357.45.camel@edumazet-laptop> <20110412154906.70829d60.akpm@linux-foundation.org> <20110412183132.a854bffc.akpm@linux-foundation.org> <1302662256.2811.27.camel@edumazet-laptop> <20110413141600.28793661.akpm@linux-foundation.org> <20110414102501.GE11871@csn.ul.ie> <20110415115903.315DEAA1@pobox.sk> <20110415104700.GD22688@suse.de> <20110415125651.68156745@pobox.sk> <1302866247.12428.25.camel@machina.109elm.lan> <20110415133644.12504ADB@pobox.sk> Content-Type: text/plain; charset="ISO-8859-15" Date: Fri, 15 Apr 2011 14:01:00 +0100 Message-ID: <1302872460.12428.27.camel@machina.109elm.lan> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 775 Lines: 23 On Fri, 2011-04-15 at 13:36 +0200, azurIt wrote: > sysfs was already mounted: > > # mount > sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) > > > I have enabled all of the options you suggested and also CONFIG_DEBUG_FS ;) I will boot new kernel this night. Hope it won't degraded performance much.. > It's only for curiousity's sake. As you report the patch fixes the problem, it matches the theory that it's allocator latency. The script would confirm it for sure, but it's not a high priority. -- Mel Gorman SUSE Labs -- 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/