Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754706AbXH1Oem (ORCPT ); Tue, 28 Aug 2007 10:34:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752060AbXH1Oed (ORCPT ); Tue, 28 Aug 2007 10:34:33 -0400 Received: from gateway-1237.mvista.com ([63.81.120.158]:63473 "EHLO gateway-1237.mvista.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751964AbXH1Oec (ORCPT ); Tue, 28 Aug 2007 10:34:32 -0400 Subject: Re: pdflush preemption From: Daniel Walker To: John Sigler Cc: linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <46D3FB7F.6060805@free.fr> References: <46D3FB7F.6060805@free.fr> Content-Type: text/plain; charset=utf-8 Date: Tue, 28 Aug 2007 07:26:08 -0700 Message-Id: <1188311169.2435.279.camel@dhcp193.mvista.com> Mime-Version: 1.0 X-Mailer: Evolution 2.10.3 (2.10.3-2.fc7) Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 574 Lines: 17 On Tue, 2007-08-28 at 12:39 +0200, John Sigler wrote: > Why does pdflush kick in to ruin my party? :-) > The expected latency is ~600 µs. > http://linux.kernel.free.fr/latency/pdflush.trace > Does ide_inb mean I'm reading from the disk? Does your real time application lock it's memory, or allow itself to be swapped? Daniel - 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/