Re: [Xen-devel] [PATCH v2 6/7] xen: credit1: treat pCPUs more evenly during balancing.

[George Dunlap <george.dunlap@xxxxxxxxxx>]

On 06/04/17 09:16, Dario Faggioli wrote:
> Right now, we use cpumask_first() for going through
> the bus pCPUs in csched_load_balance(). This means
> not all pCPUs have equal chances of seeing their
> pending work stolen. It also means there is more
> runqueue lock pressure on lower ID pCPUs.
> 
> To avoid all this, let's record and remember, for
> each NUMA node, from what pCPU we have stolen for
> last, and start from that the following time.
> 
> Signed-off-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>

Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>


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