To check the raw transfer speed I did:
telnet -c 192.168.1.159 73 >/dev/null
and typed in the 'Waveform?\n" command.
The times per megasample for 16 megasamples in this case:
10.25
10.24
10.24
10.25
10.24
10.25
10.24
10.25
10.24
10.25
10.24
10.25
10.24
10.25
10.24
10.24
So I'm pretty sure that the slowdown is in the StreamDevice processing somewhere.
By way of comparison, here are the 16 'seconds per megasample' values when using ASYN/StreamDevice rather than telnet:
16.78
48.18
80.91
113.86
147.28
180.20
211.65
244.36
278.61
308.90
342.91
374.54
408.60
439.26
473.29
505.54
On Sep 26, 2010, at 2:40 PM, Mark Rivers wrote:
> Have you turned on asynTrace in the low-level (TCP?) driver and sent the output to a file so it does not slow things down too much? Can you see then what's on the wire?
>
> Mark
>
--
Eric Norum
[email protected]
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