[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] [RFC] Physical hot-add cpus and TSC
> BTW, I notice one more thing, when system booting w/o hotplug, the warp > is 0. However, after I return back after weekend, I noticed the warp is > 182. Because I did the hotplug action before getting the warp, I'm not > sure if it's caused by the hotplug action, or the system TSC will drift > very slowly. > (XEN) TSC marked as reliable, warp = 182 (count=2) Hmmm... I'm much more worried about this case and would like to understand this better. If this is reproducible on real-world QPI systems, and there is no way to a priori determine that "this is a system where even though the Invariant TSC bit is set, this system may drift", then there is no way Invariant TSC can be exposed to a guest. /me can hear Jeremy biting his tongue hard to avoid saying "I told you so". ;-) Dan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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