Re: [libvirt] [PATCH 06/10] vcpubandwidth: introduce two new libvirt APIs

At 07/07/2011 10:32 AM, Taku Izumi Write: > >>>>>>> So why introduce VCPU level apis? >>>>>> >>>>>> Adam Litke said IBM's performance team nead to control cpu bandwidth for each >>>>>> vcpu. >>>>> Right, but we do not export that as a User API, that was my suggestion. >>>>> We can internally control each vcpu's bandwidth, i.e. divide equally. >>>> >>>> Hmm, I heard that some server could run CPUs at different speed. >>>> May be this patch can simulate this behavior. >>> That happens on my laptop as well, depending on the machine load CPU >>> frequency is changed but it is done transparently. >> >> I means explicitly CPU speed configuring. ;) >> >>> >>> I am not sure if we are trying to simulate that here. >> >> So why not leave the flexible interface here, and let users make >> the decision? > > In my mind, the flexibility is not always a good thing. > It is nothing but troublesome for the person who doesn't like > detailed setting. I don't know how many people want this flexibility. I think we should implement the flexibility. If we do not implement, and we want it later, we can not reuse these codes(add new element, and reimplement).