From mboxrd@z Thu Jan 1 00:00:00 1970 From: gowrishankar Subject: Re: Help about Ubuntu Linux-rt Date: Thu, 23 Sep 2010 09:05:10 +0530 Message-ID: <4C9ACAEE.8020402@linux.vnet.ibm.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-rt-users@vger.kernel.org To: rafet ilgin Return-path: Received: from e23smtp05.au.ibm.com ([202.81.31.147]:39354 "EHLO e23smtp05.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752648Ab0IWDfP (ORCPT ); Wed, 22 Sep 2010 23:35:15 -0400 Received: from d23relay03.au.ibm.com (d23relay03.au.ibm.com [202.81.31.245]) by e23smtp05.au.ibm.com (8.14.4/8.13.1) with ESMTP id o8N3UZEh023498 for ; Thu, 23 Sep 2010 13:30:35 +1000 Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay03.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id o8N3ZDaO1187896 for ; Thu, 23 Sep 2010 13:35:13 +1000 Received: from d23av04.au.ibm.com (loopback [127.0.0.1]) by d23av04.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id o8N3ZDmX013750 for ; Thu, 23 Sep 2010 13:35:13 +1000 In-Reply-To: Sender: linux-rt-users-owner@vger.kernel.org List-ID: On Thursday 23 September 2010 02:27 AM, rafet ilgin wrote: > I have installed real time image on my ubuntu karmic(9.10) by using > the command apt-get install linux-rt(2.6.31.9-rt). After installing > the image I have booted my system from real time kernel(2.6.31.9-rt). > Can I say that is it now real time? And is it soft real time or hard > real time? I looked at the file /boot/config-2.6.31.9-rt and saw that > CONFIG_PREEMPT_RT=y is set. If you reply me I would really appreciate > it. > CONFIG_PREEMPT_RT is written to meet the hard realtime challenges, but it also depends on the hardware you use. Make sure the system is not against you :) . Also, your software should also be written to make use of realtime api's, otherwise you may not see the difference. Thanks, Gowrishankar > -- > 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 > >