[issue41271] Add support for io_uring to cpython

[Terry J. Reedy]

Change by Terry J. Reedy :


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nosy:  -terry.reedy

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[issue41271] Add support for io_uring to cpython

[Dima Tisnek]

Dima Tisnek  added the comment:

Would now, a year later, be a good time to consider io_uring?

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[issue41271] Add support for io_uring to cpython

[Ronald Oussoren]

Ronald Oussoren  added the comment:

I'm closing this as "later" as the consensus is that this might be a useful 
binding to have, but io_uring is evolving too fast at the moment. 

It is better to develop these bindings on PyPI, which also makes it easier to 
iterate on the design.

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resolution:  -> later
stage:  -> resolved
status: open -> closed

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[issue41271] Add support for io_uring to cpython

[Terry J. Reedy]

Terry J. Reedy  added the comment:

I think that the answer is maybe, eventually, and if so, an ioring module that 
any event framework can use and a separate asyncio module for its use with 
asyncio.  I say maybe because the lwn article suggests that additions and 
revisions might continue for a decade or more.  A pypi py_iorin wrapper for 
lib_ioring might need revision with each Linux x.y release for a long time.

The opening question could have been raised on the python-ideas or possibly 
pydev lists.  Since this list is for patches to cpython, creating and 
maintaining a py_ioring package on pypi should be discussed elsewhere.  In the 
meanwhile, this issue could be closed as 'later' ("Issue is to be worked on in 
a later release cycle.").

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nosy: +terry.reedy

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[issue41271] Add support for io_uring to cpython

[Giampaolo Rodola']

Change by Giampaolo Rodola' :


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[issue41271] Add support for io_uring to cpython

[Dong-hee Na]

Change by Dong-hee Na :


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nosy: +corona10

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[issue41271] Add support for io_uring to cpython

[Ammar Askar]

Ammar Askar  added the comment:

See also: https://github.com/python-trio/trio/issues/932 which contains a link 
to a library with cffi bindings to io_uring

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[issue41271] Add support for io_uring to cpython

[Cooper Lees]

Cooper Lees  added the comment:

Totally agree with a separate module first to POC. I should have stated that. 
Main goal was to open this issue to start discussions :)

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[issue41271] Add support for io_uring to cpython

[Benjamin Peterson]

Benjamin Peterson  added the comment:

I agree that adding stdlib support is premature. io_uring has a large and 
growing API surface. It will take some experimentation to see what the best way 
to expose its power to Python is.

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[issue41271] Add support for io_uring to cpython

[Ronald Oussoren]

Ronald Oussoren  added the comment:

How stable is the io_uring API?

The stdlib evolves slowly, I'm not sure if the io_uring interface has matured 
enough to make it acceptable that updates to the stdlib bindings for that API 
are only done in new major releases of CPython (about every 18 months). 

It is probably better to create a PyPI package for this API. This package can 
then also provide an asyncio eventloop implementation.

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[issue41271] Add support for io_uring to cpython

[Cooper Lees]

New submission from Cooper Lees :

Would adding support for io_uring in Linux to stadlib IO and/or asyncio make 
sense?

More info on io_uring:
- https://kernel.dk/io_uring.pdf
- https://lwn.net/Articles/810414/

--
components: IO
messages: 373477
nosy: cooperlees
priority: normal
severity: normal
status: open
title: Add support for io_uring to cpython
type: enhancement
versions: Python 3.10

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