:I agree that "it's to be expected", but the "it doesn't matter" :argument is pretty lame. It matters. Coming to FreeBSD the :first time, I would definitely make a decision for 4.7 vs. 5.x :if performance were an issue for me. I still have not seen a :reasonable justification for interrupt threads (for example), :except that they are easier to understand and program. : :-- Terry
Interrupt threads have 'grown' on me. I like them. But I come from an embedded world where switching threads costs no more then a procedure call. The way I figure it, we will eventually be able to make -current's scheduler efficient enough such that the overhead of switching to an interrupt thread becomes a non-issue, and they take care of the big problem we've always had with interrupts under SMP... managing interrupts in an SMP environment. I am somewhat partial to the interrupt context stealing idea too, though I'm not sure if the added complexity is worth it (time may be better spent improving the scheduler). -Matt Matthew Dillon <[EMAIL PROTECTED]> To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message