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Posts: 53 | Thanked: 12 times | Joined on Mar 2010
#13
Originally Posted by stas123 View Post
In Toronto, I'm getting speeds about 1.0-2.0 Mbit down and ~1.0 Mbit up.

All ports are open, but certain types of traffic get major shaping. For example, I couldn't get GTalk video to connect from the N900, even though the latency is low (~100ms) and there's plenty of available bandwidth.
I decided to test out some things, and here's clear evidence that YouTube, among other things, is being throttled on Mobilicity.

Measurements taken using DU Meter. The horizontal line on the graph is set at 2.0 Mbps, vertical grid lines are spaced every 30 seconds.

Test 1
TV Show (Usenet)
Video length: 21:27

I was able to stream this video after approximately one minute (the time to download the first 20,000KB segment).

Code:
Start time       11/24/2010 20:42:14
Stop time        11/24/2010 20:56:01
Elapsed time     13 min 47.0 sec
                                             Incoming         Outgoing
------------------------------------ ---------------- ----------------
Total of data transferred                    186.4 MB           3.7 MB
Maximum transfer rate                      308.9 KB/s         6.1 KB/s
Average transfer rate                      230.8 KB/s         4.5 KB/s



Test 2
Music Video (YouTube)
Video length: 5:08

This video was unwatchable, as it would stop to buffer every 10 seconds or so. To watch it uninterrupted, you'd have to pause it and let it load for about 6 minutes before you hit play.

Code:
Start time       11/24/2010 21:38:41
Stop time        11/24/2010 21:49:49
Elapsed time     11 min 7.6 sec
                                             Incoming         Outgoing
------------------------------------ ---------------- ----------------
Total of data transferred                     35.1 MB         694.2 KB
Maximum transfer rate                      137.9 KB/s         9.0 KB/s
Average transfer rate                       53.9 KB/s         1.0 KB/s

Last edited by stas123; 2010-11-25 at 03:35.
 

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