[LINK] RFI: Usability of Telstra ADSL Service Page
foconno1 at bigpond.net.au
Sat Nov 20 18:52:12 EST 2004
Given that it's supposed to be used by ADSL users I suppose I should comment.
I have a 1.5 Mbit per second ADSL connection with Telstra ...
The page took about 9 seconds to load on that (using Mozilla 1.73). I
cleaned out the cache before I hit the page, and don't use proxy
servers - so it should have loaded straight from the site. It loaded
at 21.6KB per second for close to 9 seconds - according to my Network
Activity Monitor ... which gives me a figure of around about 200 KB.
The 21.6 KB pans out at about 170 Kbits, and as I said my connection
is theoretically 1.5 Mbs ... which I have no trouble getting at most
sites ... so the Web server seems pretty stressed.
Given that newspaper pages (Age, news. news.com.au etc) and complex
pages on most Australian sites with relatively large pipes load in
less than a second ... that puppy certainly is a slow loader.
It also seemed to to be slow on the HTML render after it had loaded
... in comparison to most other Web pages. Didn't bother looking at
the page source code to determine why.
That said ... I find the Telstra Web Servers seriously flaky at the
best of times ... so the lack of speed could be a function of either
per server performance at Telstra, or the design of the page.
That said, any number of factors can affect throughput, latency and
performance ... and I don't really have the time to do a serious
diagnostic of the connection.
At 5:01 PM +1100 20/11/04, Roger Clarke wrote:
>I'm preparing my latest letter to the TIO in relation to a complaint
>I made a while back about Telstra's technical support durng ADSL
>One aspect of the complaint concerns the Service Status WebPage, at:
>This was changed, and significantly improved, during the last few
>months. (It's not *all* bad news where's Telstra's concerned - the
>page used to be unusable at c. 750KB; and the ADSL service itself
>has been pretty stable).
>I'm testing one specific concern: is the page small enough to be
>usable over dial-up links. That is, of course, its primary mode of
>usage; because people mostly want to display it when they've had to
>abandon their non-functioning ADSL link and switch to their fallback
>I've used my FTP tool, Interarchy 7.2, to capture the traffic that a
>forced reload of that page generates.
>The log fills 100 A4 pp. of 12-point expansion (including line
>separation to enable readability).
>I don't think I've got any decent analysers handy. My quick scan suggests:
>- c. 240 packets
>- c. 140 @ c. 536 bytes, 13 @ 1200 and 83 @ 160, totalling c. 100KB
>On a reliable 40Kbit/sec connection, that would require 20 seconds.
>Can anyone quickly and easily confirm or deny my rough estimate?
>Is your impression like mine: 'it's a bit excessive, but it's not
>*too* unreasonable to impose that on a dial-up user' ?
>Roger Clarke http://www.anu.edu.au/people/Roger.Clarke/
>Xamax Consultancy Pty Ltd, 78 Sidaway St, Chapman ACT 2611 AUSTRALIA
> Tel: +61 2 6288 1472, and 6288 6916
>mailto:Roger.Clarke at xamax.com.au http://www.xamax.com.au/
>Visiting Professor in the eCommerce Program, University of Hong Kong
>Visiting Professor in the Baker Cyberspace Law & Policy Centre, U.N.S.W
>Visiting Fellow in Computer Science, Australian National University
>Link mailing list
>Link at mailman.anu.edu.au
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