Eli Cohen wrote:
Implement support for modifying IPOIB CQ moderation params
This can be used to tune at run time the paramters controlling
the event (interrupt) generation rate and thus reduce the overhead
incurred by hadling interrupts resulting in better throughput.
I think we have to carefully think if/how does this feature goes hand in
hand with NAPI. Since NAPI is not optional, with this feature the
network stack tries to do its best to reduce interrupts with the NAPI
logic, and on top of that the HW is instructed to apply this logic
before issuing an interrupt.
Does the need here suggests that NAPI can be improved? if yes how? maybe
for some infiniband devices interrupt moderation for itself would be
better so NAPI should be disabled?
To suggest this for merge, I think you would need to share the list with
the IPoIB results you had with NAPI vs with NAPI AND interrupt moderation.
Or.
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