Re: [PATCH 2/2] nvme-pci: allow unmanaged interrupts

Thomas Gleixner
2024-05-20T20:34:43Z

On Mon, May 20 2024 at 17:37, Christoph Hellwig wrote:

> On Sun, May 12, 2024 at 08:35:55AM +0200, Thomas Gleixner wrote:
>> That's expected as you pin the I/O operation on the isolated CPUs which
>> in turn makes them use the per CPU queue.
>>
>> The isolated CPUs are only excluded for device management interrupts,
>> but not for the affinity spread of the queues.
>
> We'll probably need a version of isolcpus that also excludes the
> interrupt spread given that users are asking for it. And I'd much
> prefer that over adding radom module options to every driver to disable
> managed interrupts.

No objections from my side.