Did it again...

[Vin DSL]

I guess the Iranians are mad at me again...

Anybody know what this means?

من بلوک پرچم بازدید کشور ها را دارم ولی ...

I did a search, but it didn't help much!

http://www.google.com/search?sourcei...D9%84%DB%8C%20...

[Vin DSL]

I think it has something to do with this...

http://www.lenon.com/modules.php?nam...tup&cat=&pos=1

[Ron]

Fascinating. Where'd you come up with that image?

BTW on your BandWidth DSL, I come up with 2.28 Mb/sec, translated to 292.09 KB/sec.

How are you doing that math?

This is my understanding of it... subject to massive readjustment :

First off, I don't know which you're measuring and which you're converting . Your pages implies you are measuring bits and converting to bytes, but I suspect you are doing it the other way 'round. But it really doesn't matter, I will use your implied direction:

Apparently you are using 1024 as the multiplier for k to M, and 8 bits per byte, as

2.28 Mb/sec * 1024 = 2334 Kb/sec
2334 Kb/sec / 8(bits/byte) = 291.84

There is some question in my mind about the k prefix in communications speed. I have reason to believe that it is 1000 and not 1024. Also there is IP overhead that has to be tacked onto any data that you're using as your download. The maximum number of bytes in a packet is 1518, only 1460 of which are data. This is further magnified when there are packets transmitted that are less than full.

I find a better approximation to be go ahead and use 1024, then divide by 9 bits/byte due to these reasons.

2334 Kb/sec / 9(bits/byte) = 259 KB/sec


Of course, if you're measuring 259 KB/sec, then the bit rate should be higher.
Or you could just label it as "effective download speed".

Just something I notced.... I do like the meter's pink to red scale, but I'd like to see the "You" stand out a little more, as I think the grey gets a little lost in the black/white motif of the site.

[Vin DSL]

Fascinating. Where'd you come up with that image?

Can't remember, for sure, but I think it was from a UK news site. Kinda puts it all in perspective though, yes? A lot of civilians don't even know (exactly) where Iran is located, let alone the locations of their nuclear installations...

BTW on your BandWidth DSL, I come up with 2.28 Mb/sec, translated to 292.09 KB/sec... How are you doing that math?

Bandwidth calculations are the source of MUCH confusion, even amongst experts, so called. Believe me, I've poured over those figures, ad nauseam (I didn't believe them myself, at first) and they are being calculated accurately.

I don't know which you're measuring and which you're converting. Your pages implies you are measuring bits and converting to bytes...

Yes! Kilobits to kilobytes, actually...

There is some question in my mind about the k prefix in communications speed. I have reason to believe that it is 1000 and not 1024.

This is a classic slip-up, and the source of much confusion. There are 8 bits in 1 byte, not 10...

Also there is IP overhead that has to be tacked onto any data that you're using as your download... I find a better approximation to be go ahead and use 1024, then divide by 9 bits/byte due to these reasons.

I toss the sync bit. Overheard is impossible to calculate exactly. It's voodoo. Most ppl believe it to be somewhere between 6-13%, but that's as far as the agreement goes. On a typical DMT DSL connection, for instance, you could theoretically be connected through up to 256 channels at once. How does one calculate for this? I don't even try...

Just something I notced.... I do like the meter's pink to red scale, but I'd like to see the "You" stand out a little more, as I think the grey gets a little lost in the black/white motif of the site.

I've played around with many, many color combinations, and don't like any of them. Maybe, one of these days, I'll find something I like. I've cruised around the web and looked at other installations of 'Bandwidth Meter DSL". Most ppl use the standard 'black' colors (which I cannot believe) but the ones that have changed the colors, I don't care for either, so...

__________________

To wrap this up, may I suggest visiting this site?

http://www.edoceo.com/utilis/bandwidth-calculator.php

If you spend 15 minutes over there, playing around with numbers, it will clear up a LOT of bandwidth questions. I use this site everyday - no kidding! Bandwidth calculations give everyone fits, so there's no shame in using this crutch. It's impossible to do it 'in your head'...

[Ron]

Like I said, I know exactly the calculation you're using, I demonstrated it up front.

Communications speeds quoted by ISPs are frequently done as k = 1000 so a connection of 1500Kbits is 1500 * 1,000 (1,500,000 bps ) instead of 1500 * 1024

I wasn't suggesting that there is a mystical 10 bit byte out there

Don't even get me started on the sync bit or the start/stop bit

I just think that for "effective" throughput you're numbers look a little off. For actual number of bits transferred inclusing TCP bits that nobody cares about, you're probably pretty close.

[Vin DSL]

Well, let's test the theory...

I just ran a test using Bandwidth Meter DSL. It reported:

• 3242.6 Kbps
• 3.17 Mbps
• 405.33 KB/sec.

Then I ran the numbers through the Edoceo Bandwidth Calculator. It reported:

• Bits:..........3,320,422
• Kilobits:......3,242.6000
• Megabits:......3.1666
• Gigabits:......0.0031
• Bytes:.........415,053
• Kilobytes:.....405.3250
• Megabytes:.....0.3958
• Gigabytes:.....0.0004

Looks pretty damn close to me, Ron!

As far as the accuracy of the measurement itself, what can I tell you? It is what it is! That's the bandwidth between your computer and my web site - like it or lump it...

[Jaded]

LoL...don't quote me on this, but... I think it says something to the effect of:

But you can't even smell a piece of bread anywhere...ie he can't even feed his people.

[Spathiphyllum]

Maybe I'll just ban the whole lot of them, and let 'em smell that...

Speaking of which, do you try to block ranges from terrorist-designated countries. I do, among others.

[Jaded]

Contextually...[LOL, they can afford nuclear plants and missiles while the country is starving] I don't want to join their forum so I can't access the entire message, just the snippet you posted. Seems the writer was agreement with you...(don't you just hate that!? lol)

[Vin DSL]

...do you try to block ranges from terrorist-designated countries...?.

Nope!

When the army is restless and distrustful, trouble is sure to come from the other feudal princes. This is simply bringing anarchy into the army, and flinging victory away.

Thus we may know that there are five essentials for victory:

1. He will win who knows when to fight and when not to fight.
2. He will win who knows how to handle both superior and inferior forces.
3. He will win whose army is animated by the same spirit throughout all its ranks.
4. He will win who, prepared himself, waits to take the enemy unprepared.
5. He will win who has military capacity and is not interfered with by the sovereign.

Hence the saying: If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.

[Vin DSL]

Seems the writer was agreement with you...(don't you just hate that!? lol)

Guess I better learn Farsi, no?

[JonathanB]

I don't know if I care much for X getting on my web site, anyway. .

When you use derogatory terms like that, I can understand why people attempt to hack into your site.

I have no doubt the people who tried to hack your site had malicious and perhaps criminal intent. But does that make sense to refer to anyone who wears appropriate headgear for their culture in such a manner?

There very well may be people of arab decent (who wear culturally appropriate headgear) who host their site here. Have a little decency and cultural understanding. Is that too much to ask?

[Vin DSL]

When you use derogatory terms like that, I can understand why people attempt to hack into your site... I have no doubt the people who tried to hack your site had malicious and perhaps criminal intent. But does that make sense to refer to anyone who wears appropriate headgear for their culture in such a manner?

I've been called worse and it doesn't bother me! You gotta have thick skin to swim in the shark-infested waters of the Internet, no?

[JPC-Greg]

I've been called worse and it doesn't bother me! You gotta have thick skin to swim in the shark-infested waters of the Internet, no?

No, you've just got to have good moderators to keep the peace.