From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <45F91516.503@domain.hid> Date: Thu, 15 Mar 2007 10:42:46 +0100 From: Theo Veenker MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Subject: [Xenomai-help] xenomai on (old) laptop List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Xenomai Hi all, I'm preparing a Toshiba Satellite S1400-153E laptop for field work. It used to run redhat 9 + RTLinux, but now it runs Ubuntu 6.06 + Xenomai 2.3. Unfortunately the latency test shows high latencies (200..500us) at irregular intervals (5..20 sec) whereas the typical max latency is around 10 us. It doesn't seem to be related to any user action. I don't think this thing has SMI, anyway xenomai doesn't detect it. It also doesn't have a local APIC. What could be the cause of these high latencies? Anyone using a laptop of this kind? Regards, Theo