Re: [libvirt] limit cpu speed in domain xml
On Thu, Mar 16, 2017 at 08:41:48PM +0300, Vasiliy Tolstov wrote:
Thanks! Next question, does it possible to provide constant speed for
vps
in case of cloud service? For example user buy vps with 500mhz or 1ghz and
pay for guaranteed resource?
IMHO that's a pretty poor way to provide/allocate capacity. The relative
processors speeds don't directly correlate to performance. If you want
to restrict a user to 1/2 the CPU, then run it at full speed but give a
schedular cap
Weights not very useful because I can't guarantee that each vps
have needed
processor time...
CPU quota + period are the settings you want to timeslice CPUs into fixed
quanties. Weight is just a relative prioritization measure.
Regards,
Daniel
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