linux-kernel - Re: PROBLEM: KB->KiB, MB -> MiB, ... (IEC 60027-2)

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Date:	Sun, 21 Jan 2007 21:03:26 +0100 (CET)
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	"H. Peter Anvin" <hpa@...or.com>
cc:	davids@...master.com,
	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: Re: PROBLEM: KB->KiB, MB -> MiB, ... (IEC 60027-2)

On Sat, 20 Jan 2007, H. Peter Anvin wrote:
> David Schwartz wrote:
> > 	Talk about a cure worse than the disease! So you're saying that 256MB
> > flash
> > cards could be advertised as having 268.4MB? A 512MB RAM stick is
> > mislabelled and could correctly say 536.8MB? That's just plain craziness.
> > 
> > 	Adopting IEC 60027-2 just replaces a set of well-understood problems
> > with
> > all new problems.
> 
> Except that you're wrong above.  Most 512 MB flash cards are less than 512
> MiB; most of them are, in fact, around 512 MB!  RAM, of course, is
> consistently 512 MiB.
> 
> This little tidbit discovered in the process of working on an application
> which required powers-of-two flash cards, and finding that one does have to
> use one size larger...

Yeah, and Ethernet speed is measured in Mbps, not Mibps.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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