Best of the Newsgroups: Network ftp speed

If this isn't exactly what you wanted, please try our Search (there's a LOT of techy and non-techy stuff here about Linux, Unix, Mac OS X and just computers in general!):

From: "Centurion" <spam_this@nowhere.com>
References: <YMlX9.20147$8N.2002618@news1.east.cox.net> 
Subject: Re: Network Speed
Date: Wed, 22 Jan 2003 16:46:11 +1100

"Buck Turgidson" <jc_va@hotmail.com> wrote in message
news:YMlX9.20147$8N.2002618@news1.east.cox.net...
> Sorry if this is a newbie question.  I have a linux box on a network
> connected with 2 10/100 cards through a cable router.  My brain is
> frozen right now.  Am I getting 100 mbps speed?  I have trouble
> converting bytes to bits, kb to mb, etc.
>
>
> ftp: 5242523 bytes sent in 0.46Seconds 11372.07Kbytes/sec.

Here's a table to help you in the future:

   bits   |   k-bits  |  bytes   |  kbytes  |   Mbytes   |  Gbytes   |
==========|===========|==========|==========|============|===========|
         1|      0.001|     0.125|0.00012207| 1.19209E-07|1.16415E-10|
      1000|      1    |       125|0.12207031| 0.000119209|1.16415E-07|
         8|      0.008|         1|0.00097656| 9.53674E-07|9.31323E-10|
      8192|      8.192|      1024|         1| 0.000976563|9.53674E-07|
   8388608|   8388.608|   1048576|      1024|           1|0.000976563|
8589934592|8589934.592|1073741824|   1048576|        1024|          1|

This table is based on the following:
     8bits  = 1 byte
1024 bytes  = 1 kbyte
1024 kbytes = 1 Mbyte
1024 Mbytes = 1 Gbyte

To use the table, find the number 1 in the column of the unit you want to
convert (eg, kybtes - "1" is 4th down) then multiply by the numbers in the
SAME row that correspond to the target unit (column) you require.  So  to
convert kbytes to bits, multiple by  8196.  To convert megabytes to kbytes,
multiply by 1024, etc.

So using your numbers above:

11372.07 x 8192 = bits/second (ie, bps)
                = 93159997.44
                = 93.16 Mbps ie, (bps / 1,000,000)

Now allowiing for packet/network overhead this is about as good as it gets
on a tcp/ip network ;-)

Cheers,

James

Jump to Comments

Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them. I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. I also may own stock in companies mentioned here. If you have any question, please do feel free to contact me.

Specific links that take you to pages that allow you to purchase the item I reviewed are very likely to pay me a commission. Many of the books I review were given to me by the publishers specifically for the purpose of writing a review. These gifts and referral fees do not affect my opinions; I often give bad reviews anyway.

We use Google third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.