From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4F315329.9050302@domain.hid> Date: Tue, 07 Feb 2012 17:36:57 +0100 From: Gregory CLEMENT MIME-Version: 1.0 References: <4F312091.5080001@domain.hid> <4F314970.5040904@domain.hid> In-Reply-To: <4F314970.5040904@domain.hid> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-core] [RFC] Port to AT91SAM9G45 List-Id: Xenomai life and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gilles Chanteperdrix Cc: Thomas Petazzoni , Maxime Ripard , Nicolas Ferre , xenomai@xenomai.org On 02/07/2012 04:55 PM, Gilles Chanteperdrix wrote: > On 02/07/2012 02:01 PM, Gregory CLEMENT wrote: >> Hello, >> >> I've done the port for AT91SAM9G45 on a AT91SAM9M10G45-EK board. The >> following patch have to be applied on top of the >> adeos-ipipe-2.6.38.8-arm-1.18-04.patch patch. >> >> I also ran latency test under heavy stress using: >> - hackbench to stress the scheduler >> - netcat to stress the Ethernet interface and generate a lot of interrupts >> - ls and dd( reading a /dev/mtdblock and writing on a tmpfs) for global stress >> >> I join the results I had after running each latency test during 10 hours. >> >> If the results I get seem the correct could you apply this patch in >> Xenomai? >> >> Should I also submit this patch to adeos project? > > We will merge this patch in the adeos patch, yes. Thanks. Note that > xenomai-2.6.0 provides a "dohell" command in order to generate some > load, and a "xeno-test" script which runs latency under dohell load. > Thanks for the pointer. Theses scripts cover almost all I've done, expect the case involving 'dd'. I chose to read the flash and no to write on a mount point located in flash to no "wear" it. Next time I will use these scripts and just tune them for my need. > Are the results obtained with or without the FCSE option enabled? > They are obtained with the FCSE option enabled. Do you want the kernel config file ? -- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com +33 602 196 044