[lkml]   [2020]   [Apr]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] [RFC] kvm: x86: emulate APERF/MPERF registers
On 27/04/20 19:30, Jim Mattson wrote:
>>>> I would like to see performance data before enabling this
>>>> unconditionally.
>>> I wouldn't want this to be enabled unconditionally anyway,
>>> because you need to take into account live migration to and from
>>> processors that do not have APERF/MPERF support.
>>> Paolo
>> I will add a kvm parameter to consider whether enable MPERF/APERF
>> emulations, and make default value to false
> Wouldn't it be better to add a per-VM capability to enable this
> feature?

Yes, you it would be better to use KVM_ENABLE_CAP indeed.


 \ /
  Last update: 2020-04-27 21:11    [W:0.071 / U:3.348 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site