Wednesday, May 13, 2009

How to measure download speed


There are lots of "speed tests" websites that will measure your download speed, such as the ones provided DSLreports and SpeakEasy.

Or, you can BitTorrent a Linux distro. The advantage is that instead of incoming data from a single site, you get hundreds of streams of incoming data from all over the Internet. The only limitation will be the download link.

I just got a new cable modem line. It's supposed to be 15megs down, but DSLreports said it was only 8mbps down. That could be a limitation with DSLreports, though, so I downloaded CentOS (popular version of Linux) to be sure, and I'm indeed limited to 8mbps down.

The graph of traffic shows that the traffic quickly ramps up and pegs at the maximum. I accidentally had the maximum set to 900-Kbytes/second, I had to up the limit, at which point the traffic averages at 1000-Kbytes/second, or 8-mbps.

5 comments:

Knyghte Hande said...

Alternatively, you can use some online tools developed by M-Lab (measurementlab.net). In my experience, they're pretty much accurate.

Cheers.
Knyghte^

Hani said...

surely you mean 1000kB/s?

Anonymous said...

Hi Robert. Since some broadband providers still artificially limit Bittorrent traffic, you might not find it as accurate as you'd like.

Dean said...

If you have Comcast that 15 Mpbs is only for like the first 5 seconds of the download. It's a marketing gimmick called Power Boost. Get Verizon FIOS and actually get the download speed you are paying for.

Robert Graham said...

If you have Comcast that 15 Mpbs is only for like the first 5 seconds of the download. It's a marketing gimmick called Power Boost. Get Verizon FIOS and actually get the download speed you are paying forPowerBoost is not a marketing gimick; it's can excellent way to improve the responsiveness of a congested network.

Verizon FIOS is in less than 5% of the markets, and not were I live, and in a friends house, is more expensive than the Comcast service.