Test Download Speed
Now downloading an invisible block of k bytes to see how long
it takes.
. . .
Done
Notes
|
If you reload this page, chances are you'll get a much faster speed because your browser will get it from a cached copy, not download it again over the internet. Just pay attention to the numbers. If your connection is slow, it could be due to any point along the way from this server to your computer: your connection to the the internet might be slow, or if there's a congestion point on the internet thru which this page is downloaded that will slow things down, or the server which serves this page might be slow. This test requires javascript to be turned on (it does the (start_time - end_time / number_of_bits) calculation.) This test does NOT take into account the latency of the connection. Ie, if it takes 5 seconds from when you clicked on the link for this page, to when this page actually started loading, then that 5 seconds is not counted. It's just counting the time from the start of this block download to the end of it. The downloaded block is actually an html comment which you dont see on the page. You could, however, do a "view source" to see it. Tho, sometimes using javascript to write parts of the page hides comments. The downloaded block is all text, eg not binary. This affects compression ratios, and generally improves performance. A milisecond is 1/1000th of a second. There are 1000 miliseconds in 1 second. Note that we usually measure file size in *bytes*, but connection speed is measured in *bits*. There are 8 bits in 1 byte. I'm downloading k bytes, which = k bits. The calculation performed is: |
John Kumpf
Alpha Verification Tools
Compaq Computer Corporation / Formerly DIGITAL
email: john@kumpf.org
kumpf@segsrv.hlo.dec.com
alternate: john.kumpf@compaq.com
internal vms: ricks::kumpf
phone: 908.431.0682