Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261553AbVEYVL0 (ORCPT ); Wed, 25 May 2005 17:11:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261563AbVEYVL0 (ORCPT ); Wed, 25 May 2005 17:11:26 -0400 Received: from mail.emacinc.com ([208.248.202.76]:2973 "EHLO mail.emacinc.com") by vger.kernel.org with ESMTP id S261553AbVEYVLX (ORCPT ); Wed, 25 May 2005 17:11:23 -0400 From: NZG Organization: EMAC.Inc To: linux-kernel@vger.kernel.org Date: Wed, 25 May 2005 16:10:30 -0500 User-Agent: KMail/1.7.1 References: In-Reply-To: MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200505251610.30868.ngustavson@emacinc.com> X-SA-Exim-Connect-IP: 208.248.202.77 X-SA-Exim-Mail-From: ngustavson@emacinc.com Subject: Re: RT patch acceptance Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1396 Lines: 33 Is the RT patch for the x86 only or is it arch independent? I'd like to do some work with it on our embedded boards if I don't get restricted to pentiums. thx, NZG. On Wednesday 25 May 2005 16:05, Esben Nielsen wrote: > On Wed, 25 May 2005, Tom Vier wrote: > > If irqs are run in threads, which are scheduled, how are they scheduled? > > fifo? What's the point then; simply to let the top half run to completion > > before another top half starts? If it's about setting scheduling > > priorities for irq threads, some one top half can prempt another, why not > > just use irq levels, like bsd (using pic's is slower than using > > threads?)? > > Long interrupt handlers can be interrupt by _tasks_, not only other > interrupts! An audio application running in userspace can be scheduled > over an ethernet interrupt handler copying data from the > controller into RAM (without DMA). > > Esben > > - > 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/ - 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/