On Tue, Jan 17, 2017 at 06:38:43PM +0200, Sagi Grimberg wrote:

quoted

Just for the record, all tests you've run are with the upper irq_poll_budget of
256 [1]?

Yes, but that's the point, I never ever reach this budget because
I'm only processing 1-2 completions per interrupt.

quoted

We (Hannes and me) recently stumbed accross this when trying to poll for more
than 256 queue entries in the drivers we've been testing.

s/stumbed/stumbled/

What do you mean by stumbed? irq-poll should be agnostic to the fact
that drivers can poll more than their given budget?

So what you say is you saw a consomed == 1 [1] most of the time?

[1] from http://git.infradead.org/nvme.git/commitdiff/eed5a9d925c59e43980047059fde29e3aa0b7836

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