K 10
svn:author
V 3
mdf
K 8
svn:date
V 27
2011-02-02T16:35:10.161026Z
K 7
svn:log
V 296
Put the general logic for being a CPU hog into a new function
should_yield().  Use this in various places.  Encapsulate the common
case of check-and-yield into a new function maybe_yield().

Change several checks for a magic number of iterations to use
should_yield() instead.

MFC after:	1 week

END