On 2011-7-7 10:32, Taku Izumi wrote: > >>>>>>> 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'm for Nikunj's desgin. Do you have any concerns? My concern is whether we need to simulate CPUs running at different speed or not. If All you guys think this isn't a problem. I'm also fine with Nikunj's idea. Thanks, Gui > > > -- > Best regards, > Taku Izumi <izumi.taku@xxxxxxxxxxxxxx> > > > -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list