On 2015-12-02 at 07:06 "'Davide Libenzi' via Akaros"
<[email protected]> wrote:
> What if RES_CORES contains CPU #0 (example, the user selected to run
> on all CPUs).
> Is it managed, or even possible, with Akaros?
You can't hand out core 0 to an MCP, currently.
sys_provision is actually only reserving cores for MCPs. These cores
are called CG cores (coarse-grained) in a few places. They contrast to
the LL (low-latency) or 'management cores', such as core 0.
> Or all-CPUs for Akaros means everything but #0?
> Is it going to be everything but #0, or in the future everything but
> #[I, J, ...]?
In the long-term, the set of CG and LL cores will be fluid. For now,
it's just LL = {0}, CG = {1, .. n-1}. MCPs get their cores from the
set of CGs. Those are the cores that have no unexpected interrupts or
otherwise get interfered with.
Barret
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