Re: viability of supporting interrupts in user space driver?

2015-11-20 Thread 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

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viability of supporting interrupts in user space driver?

2015-11-19 Thread Robert P. J. 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.

rday

-- 


Robert P. J. Day Ottawa, Ontario, CANADA
http://crashcourse.ca

Twitter:   http://twitter.com/rpjday
LinkedIn:   http://ca.linkedin.com/in/rpjday



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