Testing for Speed

Grant Edwards grante at visi.com
Tue Feb 20 13:47:10 EST 2001

In article <mailman.982599381.15269.python-list at python.org>, Ben Ocean wrote:

>How do I determine a visitor's connection speed? Clock a round trip?

"Connection speed" is a rather vague term.  The only meaningful
results are going to be from measuring whatever it is you care
about. If you want to know how long it takes to download a 100K
file, then transfer a 100K file and measure it.  For file
transfers, you should have a pretty representative number by
measuring how much data you can transfer over a period of a
several seconds.

If you just want round-trip packet timing, doing a "ping" will
tell you that, but ping times don't correlate with data
transfer rates.  Ping measures how long the pipe is, data transfer
rate is determined by its diameter.

Grant Edwards                   grante             Yow!  I'm reporting for
                                  at               duty as a modern person. I
                               visi.com            want to do the Latin
                                                   Hustle now!

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