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Re: [PATCH] xen/cpupool: limit number of cpupools
- To: Juergen Gross <jgross@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>
- Date: Wed, 18 May 2022 14:58:56 +0000
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- Thread-topic: [PATCH] xen/cpupool: limit number of cpupools
On 18/05/2022 15:44, Juergen Gross wrote:
> Today the number of cpupools in a system is unlimited. This can lead to
> multiple problems (e.g. duplicate cpupool-id).
Not to mention scalability issues. Search by ID is O(n).
>
> Limit the number of cpupools to twice the number of maximum possible
> cpus, allowing to have one cpupool per physical cpu plus some spare
> cpupools for special means (there are already existing use cases for
> such spare cpupools).
Probably one of Suggested-by/Reported-by/Requested-by :) Dealers choice.
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Otherwise, LGTM.
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
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