SMP XP Guest = unsynchronized timers
when running smp windows xp guest os under hyper-v seeing unsynchronized timers across cpu's applications game servers rely heavily on accurate timers fail.
shutting down vm , changing single processor under settings, restarting , running same test , good.
from our conclusion timers across cpu's in hyper-v not aren't synchronized way out extent clock in seconds can seen go backwards on occasion , hence running smp causing big problems.
this make hyper-v unusable i'm hoping there workaround / fix seems major flaw.
shutting down vm , changing single processor under settings, restarting , running same test , good.
from our conclusion timers across cpu's in hyper-v not aren't synchronized way out extent clock in seconds can seen go backwards on occasion , hence running smp causing big problems.
this make hyper-v unusable i'm hoping there workaround / fix seems major flaw.
hate answering myself needs must. seems down fact tsc synchronized across virtual processors time can indeed go backwards. our current solution set /usepmtimer in boot.ini of guest os.
this seems work ok beg question how expensive tsc on guest os , hyper-v have option direct hardware access tsc of host avoid overhead vmware does?
this seems work ok beg question how expensive tsc on guest os , hyper-v have option direct hardware access tsc of host avoid overhead vmware does?
Windows Server > Hyper-V
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