support Netty io_uring transport

[sullis]

• https://en.wikipedia.org/wiki/Io_uring
• https://github.com/netty/netty-incubator-transport-io_uring

[sullis]

fyi @normanmaurer

[normanmaurer]

nice...!

[sullis]

Work in progress
cc: @artgon

[sullis]

@argha-c This is a draft PR of io_uring support. WDYT?

[sullis]

I rebased this PR with the master branch.

Ready for review @argha-c

[artgon]

I think this is really cool, but seems like it's "incubator" mode so we're unlikely to run it in production (yet). I'm open to merging it to allow people to play around with it but it won't have the kind of verification that the rest of the code has.

[sullis]

I think this is really cool, but seems like it's "incubator" mode so we're unlikely to run it in production (yet). I'm open to merging it to allow people to play around with it but it won't have the kind of verification that the rest of the code has.

Agreed. It is an "incubator" feature. I think it would be good to merge it so that folks can play around with it.

[sullis]

I resolved all merge conflicts.

[argha-c]

@sullis : Thanks for addressing the feedback so far. We're definitely open to merging it, and appreciate your contributions.

If you could consolidate and exercise the tests in our regular module (now that we have the FP), I think it'd be more valuable than introducing a separate test module altogether.

[sullis]

@sullis : Thanks for addressing the feedback so far. We're definitely open to merging it, and appreciate your contributions.

If you could consolidate and exercise the tests in our regular module (now that we have the FP), I think it'd be more valuable than introducing a separate test module altogether.

I moved IoUringTest.java to zuul-core

Is this ok or should I move the test case into ServerTest.java ?

[argha-c]

LGTM. Please rebase and resolve conflicts.

[sullis]

LGTM. Please rebase and resolve conflicts.

Done.