Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964876AbVLQAYk (ORCPT ); Fri, 16 Dec 2005 19:24:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932560AbVLQAYk (ORCPT ); Fri, 16 Dec 2005 19:24:40 -0500 Received: from main.gmane.org ([80.91.229.2]:42465 "EHLO ciao.gmane.org") by vger.kernel.org with ESMTP id S932552AbVLQAYj (ORCPT ); Fri, 16 Dec 2005 19:24:39 -0500 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Gunter Ohrner Subject: Re: 2.6.15-rc5-rt2 slowness Date: Sat, 17 Dec 2005 01:22:35 +0100 Message-ID: References: <1134736325.13138.119.camel@localhost.localdomain> <1134773902.27117.14.camel@cog.beaverton.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7Bit X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 212.117.85.179 User-Agent: KNode/0.10 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 788 Lines: 16 john stultz wrote: > Do check that the slowness you're seeing isn't related to the > CONFIG_PARANIOD_GENERIC_TIME option being enabled. It is expected that > the extra checks made by that config option would slow things down a > bit. The first kernel I built which showed this behaviour had no debugging options enabled. It happens if the system is mostly idle, in this state "top" will show a kernel usage of 20%-50%, and as soon as something cpu intensive is started, the whole system becomes extremely unresponsive. Greetings, Gunter - 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/