On Mon, Dec 27, 1999 at 10:30:54AM -0800, Kip Macy wrote:
> They may be preemptive, but I saw a lot of instances with Lyris where one
> thread could easily monopolize processor time at the expense of all
> others and I had to add sleeps in at places.
Is this recently, or a while ago? FreeBSD user threads used to use
SIGVTALRM for its pre-emption signal. This didn't count time in
syscalls. So, if you had a syscall (eg I/O) intensive thread, it
would hog processor time. I think that has been changed.
--
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