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

[Bart Van Assche]

On 7/15/26 12:57 AM, Jun Zeng wrote:
> The IOPS for small IO can be significantly improved when enabling
> interrupt coalescing in this case. However, in some cases (e.g., big
> IO for bandwidth or latency-sensitive tests with small IO and small
> queue depth), interrupt coalescing has side effects.
>
> Solution
> ========
>
> 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?

Thanks,

Bart.