[PATCH v2] nvme-multipath: introduce service-time iopolicy

[Christoph Hellwig]

On Thu, Nov 07, 2024 at 02:32:49PM +0800, Guixin Liu wrote:
> The service-time policy can dispatch I/O to the path with the lowest
> total amount of currently processed I/O, ensuring that new I/O can be
> sent to less-loaded paths when some paths are overloaded, thereby
> achieving lower latency.

What is the exact use case for this?  The commit log is unfortunately
very sparse.  All these little policies add up, and we have absolutely
no documentation on them :(