On Wed Jul 6 11, Andriy Gapon wrote: > on 06/07/2011 16:33 Alexander Best said the following: > > you might also want to try enabling options IPI_PREEMPTION. no idea, if this > > improves your situation, though. > > Just in case, this option has effect for 4BSD scheduler only.
thanks. i did not know that. maybe we could add a small note to NOTES or even mention in sched_ule(4) and sched_4bsd(4), which kernel options affect the according scheduler. sched_ule(4) e.g. doesn't mention kern.sched.preemption, so one can assume that defining PREEMPTION in the kernel or not doesn't make a difference. however it *does* make a huge difference. i believe sched_ule(4) in general needs a lot more details about the various sysctl vars available and their semantics. cheers. alex > > -- > Andriy Gapon _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"