On Wed, 2012-07-11 at 04:42 -0500, Alexander Motin wrote: > 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. >
I'm definitely not getting getting 20 millisecond timing with freebsd kqueue which surprised me because I get it with linux linuxfd_create/read using the same hardware. -- Paul Albrecht _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
