From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4A157FD9.40106@domain.hid> Date: Thu, 21 May 2009 18:22:49 +0200 From: Antoine Nourry MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: [Xenomai-help] About HARD real time List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "xenomai@xenomai.org" Hi, I just wonder : Why can we read everywhere that PREEMPT-RT patch offer HARD real time while in other papers we can read that it cannot ensure determinism ? (because it only seems to permit low latencies but not constant execution times, by the way why ? Is it because this patch still uses undeterministic parts of the kernel ? ) Considering this, how Xenomai 3 will be able to rely on PREEMPT-RT as real time enabling technology, allowing user to bypass ADEOS ? Thanks for your work, Antoine