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SubjectRe: [PATCH v8 0/3] powerpc: Detection and scheduler optimization for POWER9 bigcore
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On 09/20/2018 10:22 AM, Gautham R. Shenoy wrote:
> -------------------------
> | L1 Cache |
> ----------------------------------
> |L2| | | | |
> | | 0 | 2 | 4 | 6 |Small Core0
> |C | | | | |
> Big |a --------------------------
> Core |c | | | | |
> |h | 1 | 3 | 5 | 7 | Small Core1
> |e | | | | |
> -----------------------------
> | L1 Cache |
> --------------------------

The scheduler already knows about shared caches. Could you elaborate on
how this is different from the situation today where we have multiple
cores sharing an L2/L3?

Adding the new sysfs stuff seems like overkill if that's all that you
are trying to do.

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