If you look at the bottom bar of some browsers (eg. IE),
and you've fallen in to a bad trip.
Browsers report skewed instaneous throughput. It includes server tread linkage setup and teardown, file access (open and close), etc. IOW, browser-reported numbers are are bogus either because there isn't enough data in the transfer to do a valid calculation given the transfer time, or because they report more than just the data transfer time.
Now, in a modern city, it is rare for anyone to get much more than 5K/sec and certainly not for long.
City has nothing to do with it.
A decent V.90 connection is a RAW 4 to 5 KB/sec. But when you add V.42's bit stripping and V.42bis data compression... much higher througput is easily attainable --- especially over the web, where much of the traffic is easily compressable ascii text (html, scripts, etc).
When transferring raw binary data, that's mostly uncompressable, you'll see the throughput rate drop to 20% higher than your raw carrier speed. Why 20%? Because even tho the V.42bis data compression is defeated, V.42's bit stripping transmits only 8 bits per byte instead of 10 (no start and stop bits).
If you want to really see what kind of throughput you're getting, then you need to use an "external" throughput monitor. Either external to your browser, such as IPNetMonitor, or external to your computer altogether.
- Dan.
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