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Re: first test of setup .. what is wrong here



On 06/30/11 11:26, Harry Putnam wrote:
> Colin Percival <cperciva@tarsnap.com> writes:
>> Cable modems typically upload at between 512 kbps and 2 Mbps; for 800 MB
>> of data, that works out to between 50 minutes and 4 hours.  Not surprising
>> that your archive hasn't completed in 12 minutes...
> 
> Perhaps they are bogus but I get upload speed at 2.9 mbps.  I'm not
> that hot at math but I'm not following your figures.
> 
>   800 mb  / 2.9 mb = 275.86206896551727 seconds

MB = mega*bytes*

Mbps = mega*bits* per second.

800 MB / 2.9 Mbps = 36.7816092 minutes.

> I'm, no doubt doing this wrong... can you explain how you arrived at
> 50 minuted to 4 hrs.  Maybe I'm mixing apples and oranges (or megabits
> and megabytes?)

Yep.

-- 
Colin Percival
Security Officer, FreeBSD | freebsd.org | The power to serve
Founder / author, Tarsnap | tarsnap.com | Online backups for the truly paranoid