Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932455Ab2JWAEz (ORCPT ); Mon, 22 Oct 2012 20:04:55 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:43656 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932102Ab2JWAEy (ORCPT ); Mon, 22 Oct 2012 20:04:54 -0400 Date: Mon, 22 Oct 2012 17:04:52 -0700 From: Andrew Morton To: Julian Wollrath Cc: Julian Wollrath , Patrik Kullman , linux-kernel , Hugh Dickins , linux-mm@kvack.org, David Rientjes Subject: Re: Major performance regressions in 3.7rc1/2 Message-Id: <20121022170452.cc8cc629.akpm@linux-foundation.org> In-Reply-To: <20121022214502.0fde3adc@ilfaris> References: <20121022173315.7b0da762@ilfaris> <20121022214502.0fde3adc@ilfaris> X-Mailer: Sylpheed 3.0.2 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1341 Lines: 31 On Mon, 22 Oct 2012 21:45:02 +0200 Julian Wollrath wrote: > Hello, > > seems like I found the other bad commit. Everything, which means > v3.7-rc*, works fine again with commit e6c509f85 (mm: use > clear_page_mlock() in page_remove_rmap()) and commit 957f822a0 (mm, > numa: reclaim from all nodes within reclaim distance) revoked. Thanks. Let's add some cc's. Can you please describe your workload and some estimate of the slowdown? Patrik has also seen this and his description is : I'm using an Asus Zenbook UX31E and have been installing all RCs in : hope of improving the Wireless and Touchpad functionality. : However, when trying 3.7 (rc1 and now rc2) I have major performance issues. : : Easiest way to reproduce is to launch and play a game like Nexuiz, : where the computer will lag, stutter and freeze until the machine is : unresponsive within a couple of minutes. : But an easy workload like browsing will also cause lags when switching : tabs or redrawing a web page after a tab switch. : Basically 3.7 is unusable for this machine. -- 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/