From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dragan Noveski Subject: Re: 2.6.23.1-rt9 (and others) Date: Wed, 07 Nov 2007 20:41:06 +0000 Message-ID: <473222E2.8030007@gmx.net> References: <1194413959.8827.66.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: linux-rt-users@vger.kernel.org Return-path: Received: from mail.gmx.net ([213.165.64.20]:48628 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1750821AbXKGToZ (ORCPT ); Wed, 7 Nov 2007 14:44:25 -0500 In-Reply-To: <1194413959.8827.66.camel@localhost.localdomain> Sender: linux-rt-users-owner@vger.kernel.org List-Id: linux-rt-users.vger.kernel.org Steven Rostedt wrote: > > Currently, what we do to test RT latencies is to run Thomas Gleixner's > cyclictest > (http://git.kernel.org/?p=linux/kernel/git/tglx/rt-tests.git;a=summary) > as well as hackbench, to see what the maximum latencies we get are. > hallo, can please someone suggest for how long time you are running cyclictest? if i run it for about 3 min. i get a feeling that the values will not change anymore, so is there any recommended time for how long to run it? another thing i do not know is, if i run cyclictest for lets say 3 minutes, than stop ('ctrl+c') and than start again, i get often different values. so is it recommended to run it more times and than to pick up the best/worst cases. i have done some tests already with rt7,8 and 10 but i am not sure if the tests make any sense - thats why i would really appreciate some answers on the both questions. cheers, doc