bity, bajty, kilo i inne...

[Paweł Sikora]

[1] [ http://encyclopedia.thefreedictionary.com/SI prefix ]

Computing 

k and greater are common in computing, where they are applied to information
and storage units like the bit and the byte.
Since 2^10 = 1024, and 10^3 = 1000, this led to the SI prefix letters being
used approximately (and wrongly) to denote "binary" prefixes as follows:

K = 2^10 = 1,024
M = 2^20 = 1,048,576
G = 2^30 = 1,073,741,824
T = 2^40 = 1,099,511,627,776
P = 2^50 = 1,125,899,906,842,624. 

However, these prefixes usually retain their powers-of-1000 meanings
when used to describe rates of data communication (bit rates):
10 Mb/s Ethernet runs at 10,000,000 b/s, not 10,485,760 b/s. 

[2] [ http://encyclopedia.thefreedictionary.com/bit rate ]

1000 b/s = 1 kb/s (one kilobit or one thousand bits per second) 
1000 kb/s = 1 Mb/s (one megabit or one million bits per second) 
1000 Mb/s = 1 Gb/s (one gigabit or one billion bits per second) 

[3] [ http://encyclopedia.thefreedictionary.com/Binary prefixes ]

New IEC Standard Prefixes

Name Abbr Factor
======================
kibi Ki   2^10 = 1024
mebi Mi   2^20 = 1 048 576
gibi Gi   2^30 = 1 073 741 824
tebi Ti   2^40 = 1 099 511 627 776
pebi Pi   2^50 = 1 125 899 906 842 624
exbi Ei   2^60 = 1 152 921 504 606 846 97


w swietle powyzszych rozwazan (zwlaszcza [2]) mam zamiar
wyslac latke z zalacznika poprawiajaca przeliczanie zmiennej
bps (w iproute2: bytes per second) na podstawie podanego suffixa.
jakis sprzeciw?

-- 
If you think of MS-DOS as mono, and Windows as stereo,
  then Linux is Dolby Digital and all the music is free...
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