[Info-vax] Accuweather new contract

johnson.eric at gmail.com johnson.eric at gmail.com
Sun Mar 29 16:48:46 EDT 2015


On Sunday, March 29, 2015 at 11:10:05 AM UTC-4, Kerry Main wrote:

> Wrt to Multinet, I am wondering if your testing was before the most
> recent version V5.4 and if it included things like fastpath in the testing:

This would have been 2010 so probably not. I can't remember if fastpath
was an option that was available or tested.

The comparison strategy is actually very simple. Instead of focusing on TCP
and all of its well intended options, I focused on UDP since that enabled a
simpler baseline.

My basic mode of comparison was... how long does it take to send a single
80 byte UDP packet. I measured that by doing that in a tight loop. It was pretty
easy to write a portable version that ran on both Linux and VMS. For grins
I also write a version that used the QIO$ interface. That improved things a little
bit, but Linux still won by a wide margin.

EJ



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