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A comment on Ask HN: Why are supercomputers all running Linux and not BSD?. Parent comment

Re:Ask HN: Why are supercomputers all running Linux and not ... by hendzen on Thursday November 16, 2017 @10:36AM (#15713453)
That's not really true anymore. Linux AIO works fine on XFS.

http://man7.org/linux/man-pages/man2/io_submit.2.html

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Re:Ask HN: Why are supercomputers all running Linux and not ... by tatersolid on Saturday November 18, 2017 @10:03PM (#15732032)
Isn’t that still experimental?

From the current aio man page:

“Work has been in progress for some time on a kernel state-machine-based implementation of asynchronous I/O (see io_submit(2), io_setup(2), io_cancel(2), io_destroy(2), io_getevents(2)), but this implementation hasn't yet matured to the point where the POSIX AIO implementation can be completely reimplemented using the kernel system calls.”

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