From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4B4B6591.6090309@domain.hid> Date: Mon, 11 Jan 2010 18:53:21 +0100 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <065A7D06F7D4E546A18E80E08D066E18146A3016C3@domain.hid> In-Reply-To: <065A7D06F7D4E546A18E80E08D066E18146A3016C3@domain.hid> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] xenomai user app working very slowly List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Landau, Bracha" Cc: "xenomai@xenomai.org" Landau, Bracha wrote: > I converted my regular posix application to a xenomai-posix > application, hoping to see an improvement in performance. However, > the new xenomai application runs e-x-t-r-e-m-e-l-y slowly, and seems > to take undue amounts of CPU time. > > I configured the xenomai with -enable-smp and -enable-x86-sep. It is > an Atom processor (a single cpu). > > Any ideas why this is happening? Check: http://www.xenomai.org/index.php/Porting_POSIX_applications_to_Xenomai and: http://www.xenomai.org/index.php/FAQs#What_may_cause_a_freeze_or_machine_lockup.3F If you do not find what is wrong, please isolate the issue you have in a small self-contained test case, which we can compile and run to investigate your issue. I insist on "which we can compile", we are not interested in partial pieces of code with ellipsis where we have to figure out what you add to run your test. -- Gilles Chanteperdrix, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com