Messages in this thread |  | | | Date | Thu, 27 May 2010 12:20:14 -1000 | | From | Zachary Amsden <> | | Subject | Re: Clock jumps |
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On 05/27/2010 12:12 PM, Bernhard Schmidt wrote: > On 27.05.2010 23:53, Zachary Amsden wrote: > > Hello Zachary, > >> I have server side fixes for this kvm-clock which seem to give me a >> stable clock on this machine, but for true SMP stability, you will need >> Glauber's guest side changes to kvmclock as well. It is impossible to >> guarantee strictly monotonic clocksource across multiple CPUs when >> frequency is dynamically changing (and also because of the C1E idle >> problems). > > Is all this relevant only when the host is on TSC? Because I have seen > these jumps when the host was on HPET and the guests were using > kvm-clock. > > Anyway, can you send me both patches? I'd like to try it, but I have > completely lost track where the up-to-date patches are.
There's more than two, there's quite a bit, I'll send it to the list soon.
Zach
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