[Info-vax] DTS/DTR test on old hardware

[Stephen Hoffman]

On 2013-02-12 19:13:46 +0000, Hans Vlems said:

> Hoff,
> as promised a few simple DTSEND tests.

Thank you.

> ...
> The /SPEED qualifier wasn't specified so DTSEND assumed ethernet and
> the result is 1.67 Mb/s, clearly somewhat better than ethernet.

Interesting.  I would have guessed at below-Ethernet speeds.

The other "fun" that cropped up with VAX were the Q-22 and Unibus speeds.

That's like the speed limitations of PCI-X slots, these days.

> All systems were unused :)

That was one of the reputed issues with the CI drivers.  System load.

That then led to the common "cost it higher" recommendations.


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