From mboxrd@z Thu Jan 1 00:00:00 1970 From: "K.R. Foley" Subject: Re: Problems with cyclictest and ps Date: Wed, 05 Dec 2007 15:29:12 -0600 Message-ID: <47571828.6000406@cybsft.com> References: <47570B50.9060502@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: linux-rt-users@vger.kernel.org To: "Phil K." Return-path: Received: from xmnp015.utc.com ([159.82.164.203]:50933 "EHLO xmnp015.utc.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751814AbXLEV3V (ORCPT ); Wed, 5 Dec 2007 16:29:21 -0500 In-Reply-To: <47570B50.9060502@gmail.com> Sender: linux-rt-users-owner@vger.kernel.org List-ID: Phil K. wrote: > Hi, > > I tried cyclictest under Debian Lenny with Kernel-2.6.23.8-hrt3 and > Kernel-2.6.22 as user root. As decribed on the cyclictest-wikipage all > cyclictest-tasks run with the scheduler class SCHED_FIFO. I controlled > the scheduler class with "ps -ce" and ps showed me SCHED_OTHER for the > cyclictest-task. > > #> ./cyclictest -t 1 -p 80 -n -i 10000 > > #> ps -ce | grep cyclic > PID CLS PRI TTY TIME CMD > 9693 TS 19 pts/5 00:00:00 cyclictest > > I am wondering why cyclictest runs as SCHED_OTHER I expected SCHED_FIFO > instead. Any explanations of this behavior are welcome. > > Regards, > > Phil > - > To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > try "ps -eLc | grep cyclic" Without the "L" you don't see threads/lightweight processes. -- kr