On Mon, Apr 19, 2010 at 11:21:47AM +0200, Espen Berg wrote: > Den 18.04.2010 11:56, skrev Gleb Natapov: > > >>That's two different things here: > >>The issue that Espen is reporting is that the hosts have different > >>frequency and guests that relay on the tsc as a source clock will > >>notice that post migration. The is indeed a problem that -tdf does > >>not solve. -tdf only adds compensation for the RTC clock emulation. > >> > >It's -rtc-td-hack. -tdf does pit compensation, but since usually kernel > >pit is used it does nothing. > > So this "hack" will not solve our problem? > If your guest uses RTC for time keeping it may help. Otherwise it does nothing.
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