Re: [PATCH v1 0/1] nvme-pci: adaptive interrupt coalescing

From: Christoph Hellwig

Date: Mon Jul 20 2026 - 11:47:56 EST


On Fri, Jul 17, 2026 at 10:06:24AM -0700, Bart Van Assche wrote:
>> Monitor the IOPS and average queue depth of inflight IO periodically
>> on each NVMe drive and enable/disable interrupt coalescing
>> automatically without user intervention. This feature is enabled by
>> default and can be disabled/enabled through debugfs during runtime.
>
> An algorithm like the above can be implemented more efficiently in NVMe
> controller hardware than in software, isn't it?

There is a lot of discussion on interrupt coalescing in the NVMe
technical working group right now. I would suggest everyone working
for a member company (and that should be everyone one the cc list
here) to check that out before rushing anything.