[Qemu-devel] Re: Again about SMP-host supporting

["Георгий Войт" <goshila@gmail.com>]

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22 июня 2008 г. 12:23 пользователь Георгий Войт <goshila@gmail.com> написал:

>
>
> 2008/6/19 Георгий Войт <goshila@gmail.com>:
>
>> At first:
>> Dear Developers!!! You make great and very usable solution! Very big
>> thx!!!!!!!!!!!!
>> So:
>>   I have a question:
>>         is there in roadmap/TODO some plans about old (or not very old)
>> SMP-hosts supporting? I mean - will qemu work not only on one core/CPU
>> without HW acceleration (like kvm) ??? Can you make for each virtual CPU
>> standalone qemu thread?  1 VurtualCPU - 1 qemu host thread; 2 VurtualCPU - 2
>> qemu host threads; etc ? I have P3 SMP machine, so it without intel VT
>> technology on each CPU, so i can run qemu only on one CPU and KVM module
>> can't be inserted...  :(
>>           So, could you say me something about it?
>>                                                                    George.
>>
>
> Writing all-caps won't make the devs in the know more responsive to such a
> general question.
>
> Of course in theory it can be done. The problem is that it requires
> synchronization between the threads, and the previous attempts to do this
> reportedly resulted in code slower than the current single-threaded
> version. See the list archives for details.
>
> If you have a good idea to tackle this, feel free to contribute a patch.
>
> As for the emulation speed, if you're running Linux maybe you can use the
> kqemu module.
>
> Andreas
>

Ok Andreas, thank you very much for your reply =) Sorry about writing all in
caps-lock, i just thinking, that nobody couldn't answer to me... By the way,
i wish to use windows as guest, so can't using kqemu acceleration =(   I
will try to find in archive version with smp support =) I have SMP with more
than 2 CPU's without HW acceleration support, so , maybe this version will
be more speedly, then single-threaded version?

      George.

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