From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 29 Dec 2000 16:19:28 -0500 From: Gregory Maxwell Subject: Re: 2.2.19pre3 and poor reponse to RT-scheduled processes? Message-ID: <20001229161927.A560@xi.linuxpower.cx> References: <200012292045.PAA17190@ninigret.metatel.office> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200012292045.PAA17190@ninigret.metatel.office>; from rafal.boni@eDial.com on Fri, Dec 29, 2000 at 03:45:23PM -0500 Sender: owner-linux-mm@kvack.org Return-Path: To: Rafal Boni Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On Fri, Dec 29, 2000 at 03:45:23PM -0500, Rafal Boni wrote: [snip] > The box in question is running the linux-ha.org heartbeat package, > which is a RT-scheduled, mlock()'ed process, and as such should > get as good service as the box is able to mange. Often, under > high disk (and/or MM) loads, the box becomes unreponsive for a > period of time from ~ 1 sec to a high of ~ 2.8sec. [snip] You are running IDE aren't you? Enable DMA and/or unmask interupts. man hdparm Good luck. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/