Re: Low perf with smp
Mark Kirkwood <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.smp |
|---|---|
| Message-ID | <[email protected]> |
Petri Helenius wrote: > Mark Kirkwood wrote: > >> >> As I understand it, when you activate SMP a more accurate, but slower >> timecounter is chosen (typically 'i8254' instead of 'TSC' on intel HW). > > > ACPI-fast should be the default with SMP. It's significantly faster than > i8254 > Yeah - if his Dell has ACPI enabled. However, ACPI-fast is still slower than say TSC. Eric, do you want to show us the output of $ sysctl kern.timecounter with and without SMP? Cheers Mark _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-smp To unsubscribe, send any mail to "[email protected]"