From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755935Ab0IVBSS (ORCPT ); Tue, 21 Sep 2010 21:18:18 -0400 Received: from tomasu.net ([64.85.170.234]:60497 "EHLO mail.tomasu.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755547Ab0IVBSR (ORCPT ); Tue, 21 Sep 2010 21:18:17 -0400 From: Thomas Fjellstrom Reply-To: thomas@fjellstrom.ca To: linux-kernel@vger.kernel.org Subject: Re: rsync causing high loads on 2.6.36-rc4 Date: Tue, 21 Sep 2010 19:18:02 -0600 User-Agent: KMail/1.13.5 (Linux/2.6.36-rc4; KDE/4.5.1; x86_64; svn-1174823; 2010-09-12) References: <201009211859.05770.thomas@fjellstrom.ca> In-Reply-To: <201009211859.05770.thomas@fjellstrom.ca> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201009211918.02364.thomas@fjellstrom.ca> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On September 21, 2010, Thomas Fjellstrom wrote: > This isn't something I remember happening with older kernels, but I just > started an rsync from an nfs share over GbE, to a external SATA drive over > usb 2, and I'm seeing both of my laptop's cores hitting 80-100% cpu use, > two rsync processes are using 20-40% each, some kworker's are using tiny > bits (2-10%), and kswapd0 is hovering around 5%. Quite a lot of the time > seems to be io- wait. load average is almost at 6. > > This is a dual core T9400 core2duo laptop, with 4GB ram, running full amd64 > (64bit 2.6.36-rc4 kernel and userspace). > > Its impacting desktop interactivity quite a lot. It's not quite as bad with a regular cp, but it does affect my laptop in the same way. -- Thomas Fjellstrom thomas@fjellstrom.ca