linux-kernel - RE: [PATCH] Documentation/x86: Document resctrl bandwidth control units are MiB

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Date: Mon, 1 Apr 2024 23:03:50 +0000
From: "Luck, Tony" <tony.luck@...el.com>
To: "Chatre, Reinette" <reinette.chatre@...el.com>
CC: "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>, "Yu, Fenghua"
	<fenghua.yu@...el.com>, Peter Newman <peternewman@...gle.com>, James Morse
	<james.morse@....com>, Babu Moger <babu.moger@....com>, Drew Fustini
	<dfustini@...libre.com>, "x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"patches@...ts.linux.dev" <patches@...ts.linux.dev>
Subject: RE: [PATCH] Documentation/x86: Document resctrl bandwidth control
 units are MiB

> It appears that there is no custom here and it may just be somebody's preference?

Reinette,

Thanks for digging around. I had thought there was general consensus that
memory was measured in 2^20, storage in 10^6 and networking in either
10^6 or 10^9 (but bits rather than bytes.

But, as you've found, there doesn't seem to be to be even that much of
a custom.

Maybe a case for https://xkcd.com/927/ (since it is April 1st, I propose
everyone standardize on Teranibbles per fortnight[1] :-) )

But back to the patch. As there is no standard, changing the documentation
to accurately represent the code looks like a good option.

-Tony

[1] 1 MiB/s == 2.5367 Tnibbles/fortnight