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Re: [Xen-devel] state of xenified SUSE kernel

On 17.05.2016 17:34, Jan Beulich wrote:
We use xenified kernels based on kernel 3.4 for years and benchmarks
showed that they are faster than the pvops (vanilla) kernels.
But what is the current state in terms of performance and features?
I'm not sure what you expect here. Up to openSUSE 42.1 and
SLE 12 SP1 they are fully maintained, i.e. you can get quite a
bit newer than 3.4 based kernels. There's not a lot of
performance analysis that I would be aware of, so I can't
answer that part anyway. And them being release branches
rather than development ones, there's not going to be any
new feature work.

As far as I know the patches are based on the original work for kernel 2.6.18 and have not been adjusted to major changes in Xen architecture. So what I am thinking about is performance improvements that result from using newer Xen features. So the question was: from an architectural point of view should pvops in recent vanilla kernels be "better" then xenified kernels?

Regards Andreas

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