Hi all! The machine is a Haswell machine, the disc performance was very poor (20-30MByte/sec). When I change the kern.eventtimer.idletick from 0 to 1, the normal performance restored back to normal (70-90MByte/sec).
The default eventtimer was LAPIC. On other machine Q9300, this was fully reproducible. _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
