OperatingSystemImpl should factor cpu shares when calculating system load

[Severin Gehwolf]

On Mon, 2021-05-03 at 17:57 -0700, Laurence Cable wrote:
> 
> On 5/3/21 4:50 PM, David Holmes wrote:
> > On 4/05/2021 9:07 am, Argha C wrote:
> > > Hello David,
> > > It does look quite similar.
> > > The crux is factoring in the sum of cpu time across all shares, 
> > > instead of a single cpu share.
> > > My proposal for implementing the fix is slightly different from
> > > the PR, but happy to trust your advice on taking this forward.
> > 
> > I would suggest liaising with the contributors of
> > 
> > https://github.com/openjdk/jdk/pull/3656
> > 
> > so see if all of the issues can be addressed together.
> 
> +1!

David, Larry:

https://github.com/openjdk/jdk/pull/3656

... is ready for integration. Could we get a second review, please? It
addresses wrong cpuLoad() calculation of cpu quota and cpu shares-based
cpu limits in containers.

Thoughts?

Thanks,
Severin