From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: 2.6.11, IDE: Strange scheduling behaviour: high-pri RT process not scheduled? Date: Thu, 31 Mar 2005 17:22:40 +0200 Message-ID: <20050331152240.GA7509@elte.hu> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mx1.elte.hu ([157.181.1.137]:28119 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S261469AbVCaPXh (ORCPT ); Thu, 31 Mar 2005 10:23:37 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: kus Kusche Klaus Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, B.Zolnierkiewicz@elka.pw.edu.pl, Florian Schmidt * kus Kusche Klaus wrote: > The following tests are made with 'IRQ 8' at 95, rtc_wakeup at 89(99): > * Heavy mmap load, no oom: max jitter: 42.1% ( 51 usec) > * Heavy mmap load, oom: max jitter: 11989.2% (14635 usec) > (but still "missed irqs: 0", so IRQ 8 was also blocked for 14 ms) did you get any kernel messages in that time? (about missed irqs, etc.) Please do a 'dmesg -n 0' to minimize the effect of kernel messages. Ingo