> >>>>> Greg A Woods <woods%planix.ca@localhost> writes: > > > Since I'm typing this mail on a VM of the "bad" (not-pinned) > > machine I'll reboot it after it is sent. So since that reboot the dom0 and domUs on that machine where I re-instated "dom0_vcpus_pin=true" have had stable clocks keeping time within a few milliseconds. Normally by now there's been quite a lot of activity on at least one of the VMs and both the dom0 and domU clocks are starting to drift way off. (Currently I've got them all syncing to the other local machine that is running at stratum 3 with multiple remote sources.) BTW, I found the following rather interesting paper, especially for its background information and discussion of xenclocksource during my searches for information about all of this: https://www.synclab.org/pubs/radclock_2010_OSDI.pdf There are some more related documents here: https://www.synclab.org/docs That radclock thing also looks quite interesting too, and I see there are patches for FreeBSD as well.... -- Greg A. Woods <gwoods%acm.org@localhost> Kelowna, BC +1 250 762-7675 RoboHack <woods%robohack.ca@localhost> Planix, Inc. <woods%planix.com@localhost> Avoncote Farms <woods%avoncote.ca@localhost>
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