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View Full Version : Info on speed tests (long post)


homerjsimpson66
15-10-2000, 11:40
This is what I found on a website to do with ADSL speed and cable modem speed:

Speed test sites on the Internet (e.g., BCTEL MultiMedia Gateway) do not provide a reliable measurement of your local link speed. The reason is that no speed test from an arbitrary remote server will tell you much about anything other than that particular route at that particular time under that particular server load, all things that can and do vary widely. (Worse, some speed test sites are so badly implemented that the results are pretty much meaningless.)
To accurately measure the speed of your local link, download a large file (at least one million bytes) from a local server under light load (e.g., Internet software from your ISP in the wee hours) and time how long it takes. When all the various overheads are taken into account, your binary FTP download speed in bytes per second will be about 1/10 of the raw link speed in bits per second (e.g., about 150 KBytes/sec over 1500 Kbits/sec link; about 38 KBytes/sec over 384 Kbits/sec link), assuming optimum configuration of your computer. (See "Increasing TCP Receive Window")

If you are running Windows 98, you can continuously monitor the speed at which data is being sent and received over a network adapter (commonly used to connect a cable or DSL modem) by installing Network Monitor Agent, which is located in the Windows 98 CD directory \Tools\ResKit\NetAdmin\NetMon. Once installed, you will be able to add Network Monitor Performance items to the display in System Monitor. (Network Monitor Agent is also available for Windows 95 in the Windows 95 CD directory \Admin\NetTools\NetMon, and can also be downloaded from Microsoft, but it apparently does not include speed monitoring capabilities.) For more information see Q200910 "How to Install Network Monitor in Windows 95/98".

If you are running Windows NT/2000, you can continuously monitor the speed at which data is being sent and received over a network adapter (commonly used to connect a cable or DSL modem) with Performance Monitor. The Object to use is Network Interface. (For information on Instances, see Q154535 "Multiple Instances of Network Interface in Performance Monitor".)

I can see their point :afro: