Adsl Speed Test Interpretation

[Maestro]

I’m not sure how to interpret the result of the ADSL speed test I ran on my laptop.

1. The system software of Windows XP tells me the speed is 24.0 Mbps:

2. On speedtest.trueinternet.co.th/speedtest/speedtest.php the result is 3309.57 Kbps:

3. On www.speedtest.com, a test connection with adsl.thailand.com gives a result of 3466 kb/s:

My best guess is that result 1 is in Megabaud per second, results 2 and 3 in kilobit per second.

Did I guess right?

--

Maestro

[surface]

3309.57 Kbps = 3.3Mb/s

3466 kb/s = 3.4Mb/s

It appears you have a 4Mb ADSL line from True.

The first thing you see @ 24Mbps is the speed (quality) of the connection between your computer and your Linksys wireless router.

My best guess is that result 1 is in Megabaud per second, results 2 and 3 in kilobit per second.

Figure 1 is in Megabits, you are correct about figures 2 and 3.

Edited December 18, 2008 by surface

[Crossy]

3309.57 Kbps = 3.3Mb/s

3466 kb/s = 3.4Mb/s

It appears you have a 4Mb ADSL line from True.

The first thing you see @ 24Mbps is the speed (quality) of the connection between your computer and your Linksys wireless router.

My best guess is that result 1 is in Megabaud per second, results 2 and 3 in kilobit per second.

Figure 1 is in Megabits, you are correct about figures 2 and 3.

Yup ^^^

It's been a while since I saw Baud used (actually 5 bit teleprinters IIRC).

Named after J. M. Emile Baudot (1845-1903), who was a French telegraph operator, who worked out a five-level code (five bits per character) for telegraphs. It was standardized as International Telegraph Alphabet Number 2, and is commonly called Baudot (and is a predecessor to ASCII). Since 2⁵ is only 32 and the uppercase letters, numbers, and a few punctuation characters add to more than that, Baudot uses Shift In and Shift Out characters (analogous to how the Caps Lock key on a PC keyboard reduces the number of keys needed by enabling each letter key to represent two characters).

The baud rate of a data communications system is the number of symbols per second transferred. A symbol may have more than two states, so it may represent more than one binary bit (a binary bit always represents exactly two states). Therefore the baud rate may not equal the bit rate, especially in the case of recent modems, which can have (for example) up to nine bits per symbol.

Usually the baud rate of a data link will not equal the bit rate and is of no interest to the end user--only the data rate, in bits per second, is.

Therefore in referring to the data rate of a data link, use bits/s (or kbits/s, etc.), not baud rate.

Edited December 18, 2008 by Crossy

[khundon]

I just tested my system and got the following results

Download 5759 Kbps (719.9Kb/sec Transfer rate)

Upload 336 Kbps (42Kb/sec Transfer rate)

Latency 671 Ms

Is this good ???

[Crossy]

I just tested my system and got the following results

Download 5759 Kbps (719.9Kb/sec Transfer rate)

Upload 336 Kbps (42Kb/sec Transfer rate)

Latency 671 Ms

It depends upon what your connection is supposed to be. Assuming it's a 6M / 512k line it's working pretty well to Singapore where the TV test site is located.

Do you really have a 6Mbps link in Thailand? Who with? Where are you?

By the way the case of the characters is important, for example your latency of 671Ms (megaseconds) is something like 21 years, should be 'ms' (milliseconds).

EDIT I note that the results on the Thaivisa speed test page also have some incorrect cases

My BSNL 2M / 512k line in sunny Bangalore gives a result of:-

Download Speed: 121 kbps (15.1 kB/sec transfer rate)

Upload Speed: 39 kbps (4.9 kB/sec transfer rate)

Latency: 4213 ms

Pretty chronic for 6.30 AM although it rarely gets over about 256k

Edited December 19, 2008 by Crossy

[monty]

It depends upon what your connection is supposed to be. Assuming it's a 6M / 512k line it's working pretty well to Singapore where the TV test site is located.

Do you really have a 6Mbps link in Thailand? Who with? Where are you?

By the way the case of the characters is important, for example your latency of 671Ms (megaseconds) is something like 21 years, should be 'ms' (milliseconds).

EDIT I note that the results on the Thaivisa speed test page also have some incorrect cases

My BSNL 2M / 512k line in sunny Bangalore gives a result of:-

Download Speed: 121 kbps (15.1 kB/sec transfer rate)

Upload Speed: 39 kbps (4.9 kB/sec transfer rate)

Latency: 4213 ms

Pretty chronic for 6.30 AM although it rarely gets over about 256k

Ouch, that latency sure is bad. Over 4 seconds! Heck, even our shitty iPSTAR can beat that

Overall my local (AIS) GPRS/EDGE connection is faster then that and with less latency!

[Maestro]

…Figure 1 is in Megabits, you are correct about figures 2 and 3.

So all figures are in bits. I think I got it now. Result 1 (24.0 Megabit per second) has no practical significance for me. It tells me how fast the bits can travel through the air from my laptop to the wireless router but what really matters is how fast they then go to the ISP’s server, and that speed is given in result 2 as 3.3 Megabit per second.

I don’t know how fast the contracted speed is and the person paying for it does not know it either but I am satisfied with the 3.3 Mb/s (which should probably be the correct symbol, not Mbps, but I now know that the two are being used interchangeably). I am told that I have the fastest package that True offers but I can’t find the list of packages on the True website.

In Switzerland I am subscribed to 3.5 Mb/s and mostly get about 3.2 Mb/s

--

Maestro

P.S. Found the True subscription list now at www.truecorp.co.th/eng/products/online_monthly_hi_speed.jsp and I seem to have the 4 Mb/s subscription.

[khundon]

It depends upon what your connection is supposed to be. Assuming it's a 6M / 512k line it's working pretty well to Singapore where the TV test site is located.

Do you really have a 6Mbps link in Thailand? Who with? Where are you?

By the way the case of the characters is important, for example your latency of 671Ms (megaseconds) is something like 21 years, should be 'ms' (milliseconds).

EDIT I note that the results on the Thaivisa speed test page also have some incorrect cases

My BSNL 2M / 512k line in sunny Bangalore gives a result of:-

Download Speed: 121 kbps (15.1 kB/sec transfer rate)

Upload Speed: 39 kbps (4.9 kB/sec transfer rate)

Latency: 4213 ms

Pretty chronic for 6.30 AM although it rarely gets over about 256k

Im in UK at the moment using Talk Talk broadband.