kqueue timer timeout period
Alexander Motin
mav at FreeBSD.org
Wed Jul 11 09:42:30 UTC 2012
Hi.
Historically FreeBSD used completely different hardware time sources for
time keeping and time events. Not sure about 5%, but the last could be
less precise in some cases. FreeBSD 9.0, depending on hardware, can be
more precise because of using same time source in both cases. Also there
is ongoing GSoC project now by Davide Italiano to handle sub-HZ
resolution for time events. Present tests show reaching 20 microseconds
precision; and I think it can be improved further.
--
Alexander Motin
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