K 10
svn:author
V 8
arybchik
K 8
svn:date
V 27
2016-06-09T12:29:03.391069Z
K 7
svn:log
V 473
sfxge(4): handle negative ticks difference correctly

ticks are signed int and if statistics is not updated for a long time
(more than INT_MAX ticks, but less than UINT_MAX) difference becomes
negative and less than hz for a long time.

Other option to repeat is simply load driver (which initializes
timestamps to 0) when ticks are negative.

Sponsored by:   Solarflare Communications, Inc.
MFC after:      1 week
Differential Revision:  https://reviews.freebsd.org/D6777

END