From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4B953664.3060005@domain.hid> Date: Mon, 08 Mar 2010 18:39:48 +0100 From: Daniele Nicolodi MIME-Version: 1.0 References: <4B9530B5.60809@domain.hid> <4B9532EA.4070300@domain.hid> In-Reply-To: <4B9532EA.4070300@domain.hid> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] First loop iteration increased latency List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gilles Chanteperdrix Cc: xenomai@xenomai.org Gilles Chanteperdrix wrote: > Either you have a bug in your protocol, or something else happens, such > as a cache effect. What is the size of the frame, what is the platform > you are using? Could you send us the test program, which would allow us > to reproduce the issue? There isn't a real protocol involved, it is just reading from a shared memory region. The platform is x86, the shared memory region is just 1024 bytes and I'm using just a few of those. I'll produce a self contained test program and I'll send it to the list. Cheers, -- Daniele