Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759538AbYBASSo (ORCPT ); Fri, 1 Feb 2008 13:18:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753083AbYBASSg (ORCPT ); Fri, 1 Feb 2008 13:18:36 -0500 Received: from mx1.redhat.com ([66.187.233.31]:45738 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751227AbYBASSf (ORCPT ); Fri, 1 Feb 2008 13:18:35 -0500 Message-ID: <47A36279.90606@redhat.com> Date: Fri, 01 Feb 2008 13:18:33 -0500 From: Chris Snook User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: veerasena reddy CC: "linux-kernel.org" Subject: Re: how to get chance for user space process even when the kernel is utilizing 100% CPU. References: <269793.73556.qm@web8403.mail.in.yahoo.com> In-Reply-To: <269793.73556.qm@web8403.mail.in.yahoo.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 540 Lines: 13 veerasena reddy wrote: > I have a requirement where i need to execute a user process even when > the kernel is utilizing 100% of CPU time. In the realtime kernel, hardware interrupt handlers are prioritized threads, so you can give the userspace process a higher realtime priority. -- Chris -- 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/