Re: [Xen-users] cpu management

[Andrej Radonic <andrej.radonic@xxxxxxxx>]

Paul Peeler wrote:
> Is there a way to define how much of the cpu a particular domU is
> allowed to use? I know you can specify which cpu/cpus it uses, but it
> would be nice to be able to say "25% of CPU0" and allow it to use more
> if it is available.
>   
Hi Paul,

yes (of course), something like that.

There is the "memory" parameter in the domU's config file. This is the 
default  as well as max RAM assigned to a domU at boot time. At runtime 
you can use "xm mem-set <domain> <megabytes>" to dynmically adjust 
allocated RAM, but only up to the initial value.
All this is accomplished via the "balloon" driver.

Cheers,
Andrej

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