2018-03-06 22:39 GMT+08:00 Eduardo Valentin <edu...@amazon.com>:
> Folks,
> On Tue, Feb 13, 2018 at 09:05:39AM +0800, Wanpeng Li wrote:
>> This patchset introduces dedicated vCPUs(vCPU pinning, and there is no
>> vCPU over-commitment) hint KVM_HINTS_DEDICATED, it has two users now:
>> 1) Waiman Long mentioned that:
>>     Generally speaking, unfair lock performs well for VMs with a small
>>     number of vCPUs. Native qspinlock may perform better than pvqspinlock
>>     if there is vCPU pinning and there is no vCPU over-commitment.
>> 2) vCPUs are very unlikely to get preempted when they are the only task
>>    running on a CPU. PV TLB flush is slower that the native flush in that
>>    case.
>> v3 -> v4:
>>  * update feature bit document
>> v2 -> v3:
>>  * a separate table for CPUID[0x40000001].EDX bits
>>  * a new kvm_hint_has_feature macro
>> v1 -> v2:
>>  * update to KVM_HINTS_DEDICATED
> Great to see this has finally moved forward! Thanks for picking it up Wanpeng.
> I would just request to next time at least reference the original thread and
> copy the original authors of the patch/idea.

Thanks for the original idea, Eduardo!

Wanpeng Li

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