[ale] Comcast speeds

[Bob Toxen]

I didn't confuse bit and byte.  Comcast's "up to 3 Mbit/s never has
exceeded about 0.5 Mbit/s.  That's like a car company claiming
100 MPG when it really gets only 20 MPG.

On Tue, Apr 03, 2007 at 03:18:49PM -0400, Scott McDonald wrote:
> Arg - I worded that wrong... but the gist of what I meant is the same.
> People (including me) tend to forget to multiple by 8 when looking at
> throughput numbers.
> 
> It depends on if your display is showing you kB or Kb  - kiloBytes or
> Kilobits - i.e. mrtg is using kB (kiloBytes) so to convert to Mb/s you
> have to multiple first by 8 to get Kb (Kilobits) then divide that by
> 1024 to get Mb/s.
> 
> i.e. for me at home on long multiday downloads via comcast - mrtg
> clocked my pipe at :
> 650kBytes/s  *  8bits/Byte = 5200Kbits/s
> 5200Kbits/s  /  1024Kbits/Mb = 5.07 Mb/s
> 
> 
> 
> 
> On 4/3/07, Scott McDonald <twopeanuts at gmail.com> wrote:
> > With MRTG graphing my gateway interface, the max I've hit over long
> > times has been ~650kbit/s.  See:
> > http://twopeanuts.com/mrtg/
> >
> > But - don't forget your bits to bytes conversions on the way to
> > converting that to Mb/s...
> >
> > 690kbit/s = 5,520 Kbytes/sec = ~5.39 Mb/s
> >
> > Kinda hard to sue them for fraud (and win) when they are delivering
> > more than promised :)
> > -Scott
> >
> >
> >
> > ---------- Forwarded message ----------
> > From: Bob Toxen <transam at verysecurelinux.com>
> > To: jeb at rev-x.com, Atlanta Linux Enthusiasts <ale at ale.org>
> > Date: Tue, 3 Apr 2007 12:11:22 -0400
> > Subject: Re: [ale] Comcast speeds
> > I just got 690kbit/s on my Comcast cable in Duluth.  That is
> > one fourth of their promised 4mbit/s.
> >
> > It's time for a Class Action suit for fraud!
> >
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