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Re: [Xen-devel] PV performance degraded after live migration
>>> On 16.03.17 at 09:13, <olaf@xxxxxxxxx> wrote:
> On Wed, Mar 15, Jan Beulich wrote:
>
>> ..., and iirc PV migration didn't have any issue with TSC freq
>> changing during migration prior to the introduction of vTSC.
>
> When was this introduced? There is a claim that this slowdown is a
> regression.
Many, many years ago (perhaps in the 4.0 time frame).
Jan
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