It'd be kinda awesome if we could have an io_uring with multiple submission queues/rings, but only one completion queue/ring. With the ability to map the submission queue only in one process, but the completion queue in multiple.
CC: @axboe
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You should re-run that test case with my async-buffered.4 branch pulled in!
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Will try to. Really need to get another decent drive that I can pass through a VM to do testing like this without having to reboot my workstation.
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Right, and artifact of having multiple threads instantiate page cache pages for this inode mapping. With the waitqueue approach, only one thread would be adding pages to the page cache (in general).
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