[vbox-dev] fUpdateStuff flag never set in trunk/src/VBox/VMM/TM.cpp ?
mark.cranness at gmail.com
Tue Dec 8 03:46:52 PST 2009
2009/12/8 Mark Cranness <mark.cranness at gmail.com>:
> Even if catchup WAS happening, I suspect I would still get the give up
> messages, because with the default values, the TSC is successful if
> the lag gets below 0.5ms. But the catchup rate when the lag is below
> 0.75ms is only +5%, which is not enough to overcome the 66.7% TSC
> (This was why I was attempting to tweak
> tmVirtualSyncGetHandleCatchUpLocked etc.)
Sorry, ignore that.
I imagined that as the catchup got closer it would use smaller and
smaller CatchUpPrecentage values and would not catch up, but that is
not how it works.
Instead, the CatchUpPrecentage can only get larger and larger during
the catchup and IT WILL catchup.
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