From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755799Ab0IVA7R (ORCPT ); Tue, 21 Sep 2010 20:59:17 -0400 Received: from tomasu.net ([64.85.170.234]:40336 "EHLO mail.tomasu.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755587Ab0IVA7Q (ORCPT ); Tue, 21 Sep 2010 20:59:16 -0400 From: Thomas Fjellstrom Reply-To: thomas@fjellstrom.ca To: linux-kernel@vger.kernel.org Subject: rsync causing high loads on 2.6.36-rc4 Date: Tue, 21 Sep 2010 18:59:05 -0600 User-Agent: KMail/1.13.5 (Linux/2.6.36-rc4; KDE/4.5.1; x86_64; svn-1174823; 2010-09-12) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <201009211859.05770.thomas@fjellstrom.ca> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. -- Thomas Fjellstrom thomas@fjellstrom.ca