Re: [PATCH V4 0/6] genirq/affinity: Abstract APIs from managed irq affinity spread

Thomas Gleixner
2023-01-11T18:59:45Z

On Wed, Jan 11 2023 at 10:18, Ming Lei wrote:
> On Tue, Dec 27, 2022 at 10:28:59AM +0800, Ming Lei wrote:
>> Hello,
>>
>> irq_build_affinity_masks() actually grouping CPUs evenly into each managed
>> irq vector according to NUMA and CPU locality, and it is reasonable to abstract
>> one generic API for grouping CPUs evenly, the idea is suggested by Thomas
>> Gleixner.
>>
>> group_cpus_evenly() is abstracted and put into lib/, so blk-mq can re-use
>> it to build default queue mapping.
>>
>> blk-mq IO perf data is observed as more stable, meantime with big
>> improvement, see detailed data in the last patch.
>>
>> Please consider it for v6.3!
>>
>> V4:
>> - address comments from John, not export the API, given so far no
>> module uses this symbol
>> - add maintainer entry for new added lib/group_cpus.c
>> - rebase on 6.2
>
> Any chance to take a look at this patchset?

I'm at it. My sickness+vacation induced backlog is horrible ....