| Re: [9fans] 9p over high-latency |
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Group: comp.os.plan9 · Group Profile
Author: Francisco J BallesterosFrancisco J Ballesteros Date: Sep 18, 2008 10:32
> I'm not saying I know it would be a good idea, but you could implement
> speculative-9P which issued the equivalent of the batched requests
> without waiting for the responses of the prior request -- since you
> are on an in-order pipe the file server would get the requests in
> order and if they all succeeded, then you've reduced some latency.
We did this, IIRC. It helped reduce latency, but for file trees like
the one used
by omero it was not enough (at least for 150ms rtts). In the end, the
file server
is pushing changes to the viewer via a "connection" file.
Of course, for other devices it might be fine.
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