Re: kvm-50 working with smp

Avi Kivity
2007-11-05T14:30:49Z

Farkas Levente wrote:
> Avi Kivity wrote:
>
>> Farkas Levente wrote:
>>
>>> hi,
>>> it seems the latest kvm-50 working with smp both with 32 and 64 bit
>>> centos-5 are now running (ie not crash), what's more it's even working
>>> if i trun back (ie on) acpi. but it seems much more slower with 2 guests
>>> 4 vcpu then kvm-36 with 2 guests single cpu. is so much slower then it
>>> can be recognized even just http response or anything else:-(
>>> another problem the windows xp guest eat 100% all the time.
>>>
>>>
>>>
>> Without FlexPriority (or tpr patching) Windows SMP is very slow. It
>> shouldn't take 100% cpu though. If this is immediately after boot, wait
>> a couple of minutes to let Windows load all its services.
>>
>
> but not just the windows are slow even all linux centos-5 32 and 64 bit
> version are _very_ slow much more slower than kvm-46 even the user
> experience is a few times slower the with kvm-46 with single cpu!
>
>

That shouldn't happen. Which kvm version introduced the problem
(anything between -46 and -50)? Did you change anything other than kvm?

--
Any sufficiently difficult bug is indistinguishable from a feature.