Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262309AbVBCK3u (ORCPT ); Thu, 3 Feb 2005 05:29:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262262AbVBCK3t (ORCPT ); Thu, 3 Feb 2005 05:29:49 -0500 Received: from web51602.mail.yahoo.com ([206.190.38.207]:58706 "HELO web51602.mail.yahoo.com") by vger.kernel.org with SMTP id S262926AbVBCK3V (ORCPT ); Thu, 3 Feb 2005 05:29:21 -0500 Message-ID: <20050203102915.61551.qmail@web51602.mail.yahoo.com> Date: Thu, 3 Feb 2005 11:29:15 +0100 (CET) From: =?iso-8859-1?q?Terje=20F=E5berg?= Subject: 2.6.10: kswapd spins like crazy To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1056 Lines: 32 I recently upgraded my desktop from 2.4.28 to 2.6.10. Even under moderate memory pressure kswapd regularly eats almost all available cpu time whenever there is a little more IO throughput, like copying large files. The system is extremely sluggish during this. The system load goes up to 7.5 or more. This is a Pentium3-866 with 768MB RAM, 2x1GB swap partitions, vanilla 2.6.10. The strange behaviour starts at about 200 MB of swap in use. 2.4.28 masters the same workload without any problems. vmstat: procs -----------memory---------- r b swpd free buff cache 6 1 428012 4868 33236 347184 ---swap-- -----io---- --system-- ----cpu---- si so bi bo in cs us sy id wa 10 7 147 120 108 111 19 10 68 3 Is there anything I can do to track this down? Regards, Terje - 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/