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Eagle 1
join:2000-11-30
Rocky River, OH

Eagle 1

Member

Which Speed Test is the most Accurate?

Which Speed Test is the most Accurate?

»miranda.ctd.anl.gov:7123/

TCP/Web100 Network Diagnostic Tool v5.2.1e
click START to begin
Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (client to server) . . . . . 653.72Kb/s
running 10s inbound test (server to client) . . . . . . 5.16Mb/s
Your PC is connected to a Cable/DSL modem
Information: Other network traffic is congesting the link

Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (client to server) . . . . . 654.37Kb/s
running 10s inbound test (server to client) . . . . . . 5.11Mb/s
Your PC is connected to a Cable/DSL modem
Information: Other network traffic is congesting the link

Speakeasy BBR SpeedTest
»cle.speakeasy.net

2004-04-29 18:37:07 EST: 4657 / 631
Your download speed : 4769467 bps, or 4657 kbps.
A 582.2 KB/sec transfer rate.
Your upload speed : 646342 bps, or 631 kbps.
test IP was to speakeasy.net via pnap.net

»/speed ··· 83278227

2004-04-29 18:38:51 EST: 4570 / 631
Your download speed : 4680402 bps, or 4570 kbps.
A 571.3 KB/sec transfer rate.
Your upload speed : 646342 bps, or 631 kbps.

»/speed ··· 83278331

Speed Test Sites I use

List of Speakeasy's POP speed test sites:
(Atlanta) »atl.speakeasy.net/
(Chicago) »chi.speakeasy.net/
(Dallas) »dfw.speakeasy.net/
(Los Angeles) »lax.speakeasy.net/
(New York City) »nyc.speakeasy.net/
(Philadelphia) »phl.speakeasy.net/
(San Francisco) »sfo.speakeasy.net/
(Seattle) »sea.speakeasy.net/
(Washington, D.C.) »wdc.speakeasy.net/

Other Test Speed Test Sites
»ndt.server.ufl.edu:7123/
»miranda.ctd.anl.gov:7123/
»speedtest.umflint.edu/
»speedtest.umnet.umich.edu:7123/
»netspeed.stanford.edu/
»www.numion.com/YourSpeed/

So which type of speed test do you think is the most accurate? The BBR, speakeasy or the ANL servers?

What other speed test sites do you use?
iceman94
Premium Member
join:2000-01-26
Goleta, CA

iceman94

Premium Member

Basically, you should accept the highest speed if you are attempting to accurately measure the speed of your line. Always look for the speed test that is closest to your physical location (or the location of your first hop). This will allow you to test the speed of your line without a bunch of extra hops in the middle.

Eagle 1
join:2000-11-30
Rocky River, OH

Eagle 1

Member

But, why are the ANL speed tests usually higher than the speakeasy speed tests (comparison by relative location) and always higher/faster than the BBR speed tests?

pflog
Bueller? Bueller?
MVM
join:2001-09-01
El Dorado Hills, CA

pflog

MVM

Some of the tests are reporting kibiBytes/s now instead of kilobytes. The different is kibiBytes/s is the bps divided by 1024 versus 1000. This will make the results appear different, but they're actually the same, just different units.

For example, if your tested with 5050 Kbps on the old test, you would see (5050/1024*1000) or 4932 or so. That's most likely why you see the difference between two "close" test servers.
macmouse
Premium Member
join:2002-05-30
Carlsbad, CA

macmouse

Premium Member

Eh?
How do you figure out those numbers?
I thought it was 8bits in a byte?
5050(bits)/8=631.25 bytes. Or to do the reverse, * by 8.
[ignoring overhead,etc..]

Are you trying to convert units (from kilo to mega)?

pflog
Bueller? Bueller?
MVM
join:2001-09-01
El Dorado Hills, CA

pflog

MVM

No, there is a difference between kibiBytes/s and kilobytes/s.

There's a good explanation here:

»www.physics.nist.gov/cuu ··· ary.html
macmouse
Premium Member
join:2002-05-30
Carlsbad, CA

macmouse

Premium Member

Oh. I didn't notice the kibi part