K 10
svn:author
V 3
mav
K 8
svn:date
V 27
2012-12-16T14:09:18.927990Z
K 7
svn:log
V 194
Continue fun of r244287: do not write i8254 mode register if the same value
was already written earlier.  This reduces usleep(1) latency with i8254
eventtimer from 22 to 19.5us.

Hinted by:	bde

END