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Datastream = dog slow ... why?

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@CoastalMaineBird wrote:

Back to a quiet network today, and I still can't get above 1350 round trips/sec.


Looks consistent with NI's reported performance - in the document I linked, there is a table showing that network streams have 2-4x longer latency versus TCP.


CoastalMaineBird wrote:

Still looks like DataStreams are a cut below the basic TCP.  And given that you have to do this finagling to get performance, the claim of "easier to use" or "less complicated" is dubious.


I haven't used network streams, but my impression is they would be better suited to an application where you want to stream data in one direction as fast as possible without worrying about buffering and connection details, than they are to a command-reply messaging system which it sounds like is what you have.

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