[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] replace rdtsc emulation-vs-native xen boot option with per-domain (hypervisor part)
On 09/28/09 15:43, Dan Magenheimer wrote: > PV ones too. An app doesn't have any idea (and doesn't > and shouldn't care) if it is running on a PV or HVM domain. > Well, it shouldn't be enabled by default. That slows down all rdtsc operations for the benefit of very niche applications. The Xen clocksource assumes that rdtsc is fast, unemulated and in need of correction. If someone really needs an artificial tsc, then they can enable the option for themselves. J _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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