[libvirt] limit cpu speed in domain xml

[Vasiliy Tolstov]

Hi. Does it possible to limit vm cpu speed for example to 1Ghz or 500Mhz ?
I need to simulate some hardware with specific cpu speed and test my
application inside this vm , i want to measure results from each test
and need constant cpu speed for testing (i need to run test not only
my notebook but on server too and want identical cpu speed inside vm)

-- 
Vasiliy Tolstov,
e-mail: v.tolstov at selfip.ru