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From: Antoine Nourry <nourry@domain.hid>
To: "xenomai@xenomai.org" <xenomai@xenomai.org>
Subject: [Xenomai-help] About HARD real time
Date: Thu, 21 May 2009 18:22:49 +0200	[thread overview]
Message-ID: <4A157FD9.40106@domain.hid> (raw)

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



             reply	other threads:[~2009-05-21 16:22 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-21 16:22 Antoine Nourry [this message]
2009-06-01 10:54 ` [Xenomai-help] About HARD real time Jan Kiszka
2009-06-01 13:33   ` [Xenomai-help] About HARD real time... and USB Antoine Nourry
2009-06-02 20:03     ` Jan Kiszka
2009-06-02  9:09 ` [Xenomai-help] About HARD real time Philippe Gerum
2009-06-02 22:40   ` Martin Shepherd
2009-07-02 14:19     ` Philippe Gerum

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