Speed Test Drama

Open discussion regarding technological or telecommunication issues
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Kamalmawa
Posts: 23
Joined: Wed Nov 08, 2006 10:15 am
Location: Melbourne, VIC

Speed Test Drama

Post by Kamalmawa » Wed Apr 02, 2008 4:39 pm

OK.. I' ve seeing lot of ppl complaining about their speed after running speed test using Broadband speed test web sites specially ozspeedtest using Exetel mirror. So I decided to do a little 15min research on my line on this here is the result:

Tested with,

BILLION 7300G
Operational Mode ADSL2+
Upstream 812 kbps
Downstream 22818 kbps
Noise Margin (Upstream) 15.8 db
Noise Margin (Downstream) 9.0 db
Attenuation (Upstream) 2.9 db
Attenuation (Downstream) 0.0 db

All these results was taken between 3.15PM and 3.30PM in Melbourne Time

1. ozspeedtest.com

Internet Explorer 7
Test run on 02/04/2008 @ 02:16 PM
Mirror: Exetel
Data: 9 MB
Test Time: 10.53 secs
Your line speed is 7.18 Mbps (7178 kbps).
Your download speed is 897 KB/s (0.88 MB/s).

Mozilla FireFox 2.0.0.13
Test run on 02/04/2008 @ 02:17 PM
Mirror: Exetel
Data: 9 MB
Test Time: 7.96 secs
Your line speed is 9.5 Mbps (9501 kbps).
Your download speed is 1.16 MB/s (1188 KB/s).


2. Znet.com.au

Internet Explorer 7
Image

Mozilla FireFox 2.0.0.13
Image


3. Cnet.com.au

Internet Explorer 7
Image

Mozilla FireFox 2.0.0.13
Image


4. Downloading a file through Download Managing software

This is the speed test which I prefer. Downloading a file using software like FDM(Free download Manger) from a high speed server (eg: Microsoft download site)
Image
I get maximum of 1.75Mb transfer rate sometimes but this is the average..

So according to this I think we can't always get 100% accurate results from these websites. Specially I have noticed sometimes ozspeedtest gives me 5178 kbps line speed. Also noticed Firfox browser shows some better results.

Tested PC:
AMD Athlon 64 X2 Dual Core 6000+
4GB 800Mhz RAM
Windows Vista 64-bit

Hope this helps you to test your speed issues.. Don't forget to leave any comments.. :wink:

CoreyPlover
Volunteer Site Admin
Posts: 5922
Joined: Sat Nov 04, 2006 2:24 pm
Location: Melbourne, VIC

Post by CoreyPlover » Wed Apr 02, 2008 8:27 pm

Thank you for the effort you have gone to here, it is well appreciated. I have noticed similar things where ozspeedtest is highly volatile (as is speedtest.net for intermittent periods) and my Opera browser gives consistently and reproducibly lower speeds for some web based tests when compared to Firefox and IE browsers.

I think one of the best ways of measuring speeds is via a download manager which downloads a single file using multiple streams (like FDM) or even better, downloading mutliple files from independent servers simultaneously.

A separate issue with speeds currently is, of course, slow speeds after midnight. Kamalmawa, perhaps you can perform similar comparisons during off-peak times. I am particularly interested in how disparate (if at all) the results are between a single web speed test is compared to a download which is requesting multiple sections of a file simultaneously (or even better, multiple files simultaneously).

James D

Post by James D » Thu Apr 03, 2008 7:31 am

You can always try www.exetel.com.au/speed/

This is a speed test set up on the exetel server.

CoreyPlover
Volunteer Site Admin
Posts: 5922
Joined: Sat Nov 04, 2006 2:24 pm
Location: Melbourne, VIC

Post by CoreyPlover » Thu Apr 03, 2008 9:13 am

James D wrote:You can always try www.exetel.com.au/speed/
That is one that I had the greatest disparity between browsers: When performing 10 back-to-back alternating tests, Opera consistently gave 1.5Mbps, IE & Firefox consistently gave 8Mbps: http://forum.exetel.com.au/viewtopic.php?t=25683

Dazzled
Volunteer Site Admin
Posts: 6003
Joined: Mon Nov 13, 2006 1:16 pm
Location: Sydney

Post by Dazzled » Thu Apr 03, 2008 2:25 pm

Interesting. Ten minutes ago I compared browser speeds on Linux. My copper line is not exactly exciting, but Opera got 3.43 Mb/s; Firefox straight afterwards managed 4.47.

wget, on the other hand, reported an average of 557 KB/s.

/edit:
How does Exetel (or other site) compute these speeds? Does the divisor (time) include a "dead" period at either end of the actual data transfer while the server and download client sort themselves out?

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