Messages in this thread | | | Date | Mon, 06 Nov 2006 12:04:25 -0500 | From | Phillip Susi <> | Subject | Re: async I/O seems to be blocking on 2.6.15 |
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Jens Axboe wrote: > You could optimistically retry when you had reaped some completed > events, or use some controlled way of blocking for free request > notification. There are many ways, most of them share the fact that the > time between notification and new io_submit() may change the picture, in > which case you'd get EAGAIN once more. > > The important bit is imho to make the blocking at least deterministic. > At some point you _have_ to block for resources, but it's not very > polite to be blocking for a considerable time indeterministically. >
Right, but there currently exists no mechanism for waiting until there is room in the queue is there? My point was that this would be required in order to return EAGAIN.
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