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It wasn't entirely true even before io_uring. The previous Linux AIO API has too many caveats and pitfalls, but there were narrow use cases where it could do ge
by wtallis 7y ago
It wasn't entirely true even before io_uring. The previous Linux AIO API has too many caveats and pitfalls, but there were narrow use cases where it could do genuine non-blocking asynchronous disk IO.
- jen20 7y agoYup - assuming you had filesystem support anyway. Seastar has a useful tool named “fsqual” for determining whether a given filesystem is capable of using kernel async IO in a non-blocking fashion.