[Bug 212681] I/O is slow for FreeBSD DOMu on XenServer

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Fri Feb 10 17:56:21 UTC 2017


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212681

--- Comment #41 from Roger Pau Monné <royger at freebsd.org> ---
Can you try to change the event timer and the time counter to a different one
than the Xen one:

# sysctl -w kern.timecounter.hardware=ACPI-fast
# sysctl -w kern.eventtimer.timer=LAPIC

And finally I'm also attaching a patch that actually disables all the fancy PV
stuff completely, could you also patch your kernel with it (if the above things
don't make a difference) and see if that makes a difference?

Thanks, Roger.

-- 
You are receiving this mail because:
You are the assignee for the bug.


More information about the freebsd-xen mailing list