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I wasn't referring to async I/O. I'm talking about the ability to make system calls using a user/kernel shared memory buffer, without having to enter and exit t

I wasn't referring to async I/O. I'm talking about the ability to make system calls using a user/kernel shared memory buffer, without having to enter and exit the kernel. (This is particularly important with all the security mitigations that make kernel entry/exit more expensive.) https://windows-internals.com/ioring-vs-io_uring-a-comparison-of-windows-and-linux-implementations/ https://windows-internals.com/ioring-vs-io_uring-a-compariso...

p_ing 2y ago
Technically Windows has Registered I/O in Windows 8/Server 2012 for networking which provided this functionality. I/O Rings in Windows extended this to other types of I/O, but of course with a separate API. https://serverframework.com/asynchronousevents/2011/10/windows-8-registered-io-networking-extensions.html https://serverframework.com/asynchronousevents/2011/10/windo... So if we're talking about concepts... NT first, again ;-)