[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 1/2] cpu steal time accounting
On 22 Feb 2006, at 23:58, Dan Hecht wrote: The interface does not provide a way for a vcpu to atomically read theentire set of time values { wallclock time, real time counter, availabletime counter, stolen time counter }. While it seems that such a mechanism might be "nice" to have in theory, it seems unnecessary in practice. Indeed, real hardware rarely provides this functionality. One nice side effect of having this feature is that the explicit stolen time counter (or available time counter) can be dropped entirely from the interface, since its value can be inferred from the real time counter and available time counter (or stolen time counter). I don't understand the last paragraph here. It's not true that, for example, available_time = real_time - stolen_time right? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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