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Re: Mark Allman: Internet measurement: what next?
- From: Matt Levine
- Date: Tue Jul 08 11:40:24 2003
On Tuesday, July 8, 2003, at 12:24AM, Jack Bates wrote:
E.B. Dreger wrote:
SL> Date: Mon, 7 Jul 2003 19:47:53 +0100
SL> From: Simon Lockhart
SL> As predominantly a content hoster, I'd love to know more about the
path
SL> between my servers and the end user. Stuff like how much bandwidth
is
SL> available (or, potentially available, to remove the congestion
issue),
SL> in real time (i.e. as fast as PMTUD works). Really stuff so I can
decide
It would be tricky, but I've heard of using javascript (not applicable
with all EU's of course) to calculate the throughput (similar to
various bandwidth testing pages) and set the results in a hidden field
which the user would then submit in a form. Something to ponder when
designing your various forms.
Of course, a better method would be to ask your visitors to provide
the information by running an applet which could feed you a lot of b/w
and latency information. Total capacity would be a little more
difficult and various theories used to calculate it blind don't work
from dialups and are questionable on broadband.
With the number of people that play with SETI and other distributed
systems, I was thinking it'd be interesting to build a 'net monitor
based on the same premise, pulling latency information peer to peer as
well as building path maps using the multiple views. While we have
this to some degree, 1M 'doze boxes would provide a lot more granular
detail. Overall performance through certain paths could also be
determined.
Gomez seems to be trying to do this, with a monetary incentive:
http://www.porivo.com/peernetwork/jsp/index.jsp
-Jack
--
Matt Levine <[email protected]>
"The Trouble with doing anything right the first time is that nobody
appreciates how difficult it was." -BIX
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