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SubjectRe: [PATCH v2] KVM: X86: Limit timer frequency to 200ms
2018-05-05 16:36 GMT+08:00 Jan Kiszka <jan.kiszka@web.de>:
> On 2018-05-05 01:44, Wanpeng Li wrote:
>> ping,
>> 2018-05-01 7:35 GMT+08:00 Wanpeng Li <kernellwp@gmail.com>:
>>> From: Wanpeng Li <wanpengli@tencent.com>
>>>
>>> Anthoine reported:
>>> The period used by Windows change over time but it can be 1 milliseconds
>>> or less. I saw the limit_periodic_timer_frequency print so 500
>>> microseconds is sometimes reached.
>>>
>>> As suggested by Paolo, lower the timer frequency limit to a
>>> smaller interval of 200 ms (5000 Hz) to leave some headroom. This
>>> is required due to Windows 10 changing the scheduler tick limit
>>> from 1024 Hz to 2048 Hz.
>
> "... lower the *default* timer frequency limit to a smaller interval of
> 200 *us* ..." - same for the subject.

Thanks Jan, I will update it.

Regards,
Wanpeng Li

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