From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <492C108B.1090909@domain.hid> Date: Tue, 25 Nov 2008 15:49:47 +0100 From: =?ISO-8859-1?Q?C=E9dric_Schaffter?= MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: Quoted-Printable Subject: [Xenomai-help] SMP issues List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "xenomai@xenomai.org" Hi List! I'm trying to compare Xenomai performances with and without SMP on my=20 Intel Core 2 duo. So I built the linux kernel 2.6.25.11 (as described here :=20 http://xenomai.org/index.php/Xenomai_quick_build_quide), and I disabled the SMP support. When I used dmesg and as I wanted, only one processor was activated... I=20 performed some tests, increasing tasks number and also their complexity... And then, I rebuilt the kernel and specified SMP support and the dmesg=20 command informed me that I have two processors working. I launched the same applications that I used to test=20 one core. But the problem is that I get same results in both case... I thought=20 tasks were automatically dispatched between cores or cpu. Did I forget something? Best regards, C=E9dric