Josh Paetzel wrote: > On Tue, Mar 26, 2002 at 09:21:57PM -0800, Terry Lambert wrote: > > Alfred Perlstein wrote: > > > > But if system calls aren't preempted under what circumstances can a > > > > process hold a vnode lock and then be usurped for processor? > > > > > > While sleeping for IO. > > > > Ideal systems release and reacquire locks when they are going > > to suspend for a long time (Djikstra's "Banker's Algorithm"). > > Of course, the downside of this is that a low priority process that > needs a lot of resources may never be able get all of the resources > that it needs. :)
That's a feature, not a bug. -- Terry To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message