Scheduler patch 03 available for testing

[esmith]

Matthew Dillon wrote:
    Ok, a more refined scheduler patch is now available for testing:

	http://leaf.dragonflybsd.org/~dillon/sched03.patch
I stressed this fairly thoroughly on an UP system. This is a big 
improvement over the prior scheduler.

However, it is now easy to notice that after having been relieved from 
heavy loads the system appears to treat some of the remaining processes 
as if the system's primary resources are still scarce. The result is 
some applications remain less responsive, long after they should have 
returned to being "snappy". I suppose this could have something to do 
with swapping pages back into primary memory after the system load has 
been lightened.