Genode affinity, multi-core separation and service encapsulation (core inferences)

[Nobody III]

It seems like we ought to have a balancer component or at least basic
balancing built into init. A lack of balancing is a huge performance issue
on modern SMP CPUs. How could we go about this? Could a server do the
balancing through the CPU session interface?

On Tue, Mar 13, 2018 at 3:40 AM, Norman Feske <norman.feske at ...1...>
wrote:

> Hello Ben,
>
> On 08.03.2018 20:23, Nobody III wrote:
> > On Genode, how do we ensure that CPU cores are being used efficiently?
>
> it is not ensured.
>
> > What mechanisms are in place for thread balancing?
>
> None. (well, except on base-linux where Linux performs the balancing)
>
> The general idea is that the balancing is not a concern for the base
> system but should be solved at a higher level. E.g., when assigning
> multiple CPUs to a VM, the guest OS will do the balancing. In a similar
> way, noux could in principle spawn processes on different CPUs while
> monitoring CPU usage (e.g., via core's trace service).
>
> Cheers
> Norman
>
> --
> Dr.-Ing. Norman Feske
> Genode Labs
>
> https://www.genode-labs.com · https://genode.org
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