On Friday 16 July 2004 15:58, K.R. Foley wrote: > Vijay Kamarshi wrote: > | > | 5) Could the kernel be fooled by hyperthreading into allocating > | multiple real-time tasks to the same physical processor (that > | should logically belong to different processors)? > > Not 100% clear on this. My understanding is that the kernel doesn't > differentiate between hyper-threading processors and physical > processors. I think the kernel sees each of them all of them as > different logical processors. There is some code in the kernel (2.4.x) that can tell the difference between physical CPUs and logical CPUs. But I don't know much about it. Look for "sibling" in the scheduler code. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
