Re: [PATCH] Document huge memory/cache overhead of memory controller in Kconfig

From: Pavel Machek
Date: Wed Feb 20 2008 - 13:19:43 EST


Hi!

> >> I know this is a pedantic comment, but why the heck is it called such
> >> a generic term as "Memory Controller" which doesn't give any
> >> indication of what it does.
> >>
> >> Shouldn't it be something like "Memory Quota Controller", or "Memory
> >> Limits Controller"?
> >
> >It's called the memory controller since it controls the amount of
> >memory that a user can allocate (via limits). The generic term for
> >any resource manager plugged into cgroups is a controller.
>
> For ordinary desktop people, memory controller is what developers
> know as MMU or sometimes even some other mysterious piece of silicon
> inside the heavy box.

Actually I'd guess 'memory controller' == 'DRAM controller' == part of
northbridge that talks to DRAM.
Pavel
--
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