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xen-ia64-devel
Re: [Xen-ia64-devel] Time for hybrid virtualization?
On Sat, Jan 26, 2008 at 05:01:26PM -0700, Alex Williamson wrote:
> Hi all,
>
> I got a pointer to re-aim-7 and thought the high-systime workload
> might give us a good worst case scenario. This workload does no I/O and
> a lot of the tests produce very high system time. Here's the results:
[...]
This makes more sense and these results are in line with Dan Magenheimer
initial results.
A factor of 4 for VTi seems to be pretty high. IIRC privified kernels
were about two times slower than native.
I think the kernel build (or gcc) involves mostly user code - which is
effeciently virtualized!
Tristan.
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