Dear Linux-il gurus, I have ran ps aux |grep migration on 2 machines, one with FC4 on x86 (NON smp kernel) and one on FC4 on x86_64 (SMP kernel). Each of these machines has a single CPU. On the first (x86) machine, there was no result. On the second (x86_64) there were 2 instances of the migration thread.
What does this say? Is it had to do with hyperthreading ? I doubt it. If I remember well , you can know if an Intel x86/x86_64 processor supports hyperthreading by looking at the flags in /proc/cpu ; if "ht" exists, it supports hyperthreading (Though I am not fully shure in this point). And both these machines had the "ht" flags in /proc/cpuinfo. Is it has to do with the fact that one machine ran NON-smp kernel and had zero migration threads while the other machine ran SMP kernel and had 2 migration threads? Will I have 2 migration threads if I will install an SMP kernel on the x86 machine ? What does this migration thread do, in short? I had tried a little to probe into the kernel/sched.c code (where the creation of the migraion thread is) but it seems to much complex. Regards, RG ================================================================To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
