Re: [PATCH v4] wifi: iwlwifi: pcie: optimize MSI-X interrupt affinity

[Johannes Berg]

On Tue, 2026-03-17 at 20:32 +0100, Adrián García Casado wrote:
> Balanced distribution: skip CPU0 for high-rate RSS queues to avoid contention with system housekeeping. Use a stateful last_cpu approach to ensure unique core assignment when skipping CPU0. This avoids mapping multiple queues to the same core.

You need to break lines ...

I tend to think you need a better reason to skip CPU0. Last time you
pretended it was actually going to be faster, now you pretend there's
contention, without ever really getting to any proof of that?


Also please read what I said before:

>> this is wrong since you really then should allocate one queue less,
>> rather than mapping two queues to the same core.

johannes