[mrtg] Re: Maxbytes for 1 meg serial?
nbastin at rbbsystems.com
Fri Dec 10 21:33:27 MET 1999
on 12/10/99 4:56 AM, Alex van den Bogaerdt at alex at slot.hollandcasino.nl
> Why do you think 1m=1024k==131072? What distance is a kilometer,
> how many grams go in a kilogram?
Yes, I know this, but I work in embedded programming, where it's very well
worth knowing that indeed a one megabit chip is 128k, not 125k.
> An exception is made for computer memory and disk space because of the
> fact that ten address lines with two possible states is possible while
> three lines with ten states is next to impossible.
> To make things more complicated: for diskspace it is common to use
> 1024 per kilo and 1000kilo per mega. For memory it is 1024*1024 per mega.
> In other words: 1024 per kilo is strange; if it is not common to use it,
> use the normal value:1000. 1024 is the exception and this is not used
> for line speed.
Ok, I think we've pretty much settled that line speed does not use the
computer worlds' whacked out version of K. It just makes math fun.. ;-)
(On a 10mbit link, you should be able to move 10 megabytes in 8 seconds, if
the terminology meant the same things, but you can't....it actually takes
you almost 9 seconds. Of course this is all theory anyhow, since it really
takes you 15 seconds.. :-))
Nick Bastin <nbastin at acm.org>
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