From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <43E70816.4030803@domain.hid> Date: Mon, 06 Feb 2006 09:25:58 +0100 From: Philippe Gerum MIME-Version: 1.0 Subject: Re: [Xenomai-core] ... the rt-preempt patch once been in fusion References: <43E668EF.4090306@domain.hid> <43E6861E.3000400@domain.hid> <43E68D74.4000903@domain.hid> In-Reply-To: <43E68D74.4000903@domain.hid> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: "Xenomai life and development \(bug reports, patches, discussions\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Hannes Mayer Cc: xenomai@xenomai.org Hannes Mayer wrote: > Ciao Philippe! > > Philippe Gerum wrote: > [...] > >> Clearly not, it is still on the project's agenda, but PREEMPT_RT has >> been too much of a moving target recently, not to speak of the vanilla >> 2.6 kernel itself. > > > Recently ? As for Kernel 2.6 there has always been too much > development for a stable release IMO, so I still prefer 2.4, > but that's a solely personal opinion. On the other hand, 2.6 > has been quite stable for me (desktop and devel-stress-testing). > I've not talked about instability for 2.6, but rather significant changes in some low-level layers. Incidentally, some of them were triggered by portion of the PREEMPT_RT infrastructure leaking to the vanilla kernel. Unfortunately, this sometimes causes issues you have to deal with when adapting Adeos to each new release. >> This combo cannot be done overnight, > > > I was not complaining - just curious :-) > >> This work is likely going to start by a test campaign evaluating >> PREEMPT_RT's and Xeno's nucleus performances in a series of simple and >> relevant test cases over different ranges of platforms, so that we could > > > Testing ? > FWIW, I've just completed another page about the vanilla vs. > preempt_rt thing: > http://www.captain.at/howto-linux-real-time-patch.php > If you have the one or another additional stress test, I'd be more > than happy to add it to the page. > Ack. Thanks. > Thanks and best regards, > Hannes. > -- Philippe.