viability of supporting interrupts in user space driver?

[Anupam Kapoor]

>>>>> [2015-11-20T13:08:46+0530]: "Robert P. J. Day" (robert-pj-day):
,----[ robert-pj-day ]
| some colleagues are considering implementing some user space drivers
| that need to recognize and process interrupts. i'm aware of the
| possibilities -- UIO, for example -- but other than the technical
| possibility of doing that, can anyone provide feedback on the
| viability or benchmarking of that?
|
| is there an example someone can point at that demonstrates the
| goodness or not of such an approach? has anyone out there done this,
| and lived to regret it in terms of performance? thanks.
`----
well, dpdk folks seem to be doing just that for quite a while, and seem
to be doing not too shabby in that space.

--
kind regards
anupam