Dear All, I have been trying to install Xenomai on my Dual Core Intel Machine. This CPU has 2 cores, so i wanted to enable the SMP flag in the kernel configuration.
I started with downloading kernel ver 22.214.171.124 from kernel.org, and got adeos patch as well as xenomai-2.4.7 downloaded. I used the prepare-kernel script for patching. When i go to the make menuconfig. The real time subsystem section gives a meassage that either the HPET_TIMER must be turned off or X68_LOCAL_APIC must be turned off. After a lot of trials, i failed to find the options for turning of the X86_LOCAL_APIC flag. Then i went on to fiddle and do some trials. I tried with subarchitecture type PC compatible, and the Processor type to be Core2 or newer. The xenomai gets installed, but the latency i get is really high. I am getting a maximum latency of around 30 us and even this is not constant. it varies a lot. After some googling i found that i must have the SMI workaround. I enabled that and recompiled my kernel. But could not get good latencies still. Now please guide me as to how can i have the SMP enabled. I want that the OS must use both the Cores of my CPU. Please also suggest if there is some documentation i can read to achieve lower latencies. Thanks in Advance Shashank ------------------------------------- Hi-Tech Gears Limited, Gurgaon, India _______________________________________________ Xenomai-core mailing list Xenomaiemail@example.com https://mail.gna.org/listinfo/xenomai-core