From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261166AbVFVMdM (ORCPT ); Wed, 22 Jun 2005 08:33:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261171AbVFVMdM (ORCPT ); Wed, 22 Jun 2005 08:33:12 -0400 Received: from imap.gmx.net ([213.165.64.20]:13986 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S261166AbVFVMdI (ORCPT ); Wed, 22 Jun 2005 08:33:08 -0400 X-Authenticated: #4399952 Date: Wed, 22 Jun 2005 14:32:47 +0200 From: Florian Schmidt To: Esben Nielsen Cc: Ingo Molnar , linux-kernel@vger.kernel.org Subject: Re: [patch] Real-Time Preemption, -RT-2.6.12-V0.7.49-00 Message-ID: <20050622143247.07b78748@mango.fruits.de> In-Reply-To: References: <20050621084426.GA13094@elte.hu> X-Mailer: Sylpheed-Claws 1.0.4 (GTK+ 1.2.10; i386-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 22 Jun 2005 01:12:14 +0200 (METDST) Esben Nielsen wrote: > On Tue, 21 Jun 2005, Ingo Molnar wrote: > > > > > * Esben Nielsen wrote: > > > > > I am seeing very high latencies on 2.6.12-RT-V0.7.50-04 with a > > > modified realfeel2: maximum is 246 us. Shouldn't it be in the order of > > > 50 us? > > > > i never got reliable results from realfeel - it should do the kind of > > careful things rtc_wakeup does to avoid false positives. > > > I tried with rtc_wakeup while I was at work (which is on my disk at home) > - but it crashed my machine (one have to be _very_ carefull about what you > do when you run in a task with RT priority!). I have fixed it now (see > below patch) and it is running for the night. Let us see if I get similar > results. Thanks for the patch. New version here: http://affenbande.org/~tapas/rtc_wakeup/rtc_wakeup-0.0.2.tgz Flo -- Palimm Palimm! http://affenbande.org/~tapas/