Hi Micah
On my machine (2-way Opteron with a vanilla 2.6.23.1 kernel) this test
program will reliably put the scheduler into a state where one CPU has
both of the busy-looping processes in its runqueue, and the other CPU
is usually idle. The usually-idle CPU will have a very high cpu_load,
as reported by /proc/sched_debug.
I tried your program on my machine (C2D, 2.6.17, O(1) scheduler).
Both CPUs are 100% busy all the time. Each busy-looping thread is
running on its own CPU. I've been watching top output for 10 minutes,
the spreading is stable and the threads don't bounce at all.
greetings
Cyrus
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