Re: [RFC PATCH v3 0/2] scheduler: expose the topology of clusters and add cluster scheduler

From: Tim Chen
Date: Tue Apr 13 2021 - 15:00:50 EST




On 4/13/21 3:45 AM, Song Bao Hua (Barry Song) wrote:
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>
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> Right now in the main cases of using wake_affine to achieve
> better performance, processes are actually bound within one
> numa which is also a LLC in kunpeng920.
>
> Probably LLC=NUMA is also true for X86 Jacobsville, Tim?

In general for x86, LLC is partitioned at the sub-numa cluster level.
LLC could be divided between sub-numa cluster within a NUMA node.
That said, for Jacobsville, we don't have sub-numa clusters
so LLC=NUMA is true for that platform.

Tim