Subject: Re: RAM size.
Date: Fri, Jul 13, 2001 at 12:13:20PM +0100
In reply to:J.A.Serralheiro
Quoting J.A.Serralheiro([EMAIL PROTECTED]):
>
>
> On Fri, 13 Jul 2001, Alexey wrote:
>
> > > mem=128M
> > Thanks, it's OK.
> >
> > You know, while running DOS or Windows, the CPU is hot (I can touch it),
> > even if I do nothing. It becomes cool under Linux!!!
>
> strange, never heard of that.
You would have if you had compiled a 2.4.x kernel lately. Under
# PCMCIA/CardBus support
Power Management support
CONFIG_PM
"Power Management" means that parts of your computer are shut
off or put into a power conserving "sleep" mode if they are not
being used. There are two competing standards for doing this: APM
and ACPI. If you want to use either one, say Y here and then also to
the requisite support below.
Power Management is most important for battery powered laptop
computers; if you have a laptop, check out the Linux Laptop home
page on the WWW at
http://www.cs.utexas.edu/users/kharker/linux-laptop/ and the Battery
Powered Linux mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Note that, even if you say N here, Linux on the x86 architecture
will issue the hlt instruction if nothing is to be done, thereby
sending the processor to sleep and saving power.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
IIRC that was also the case for Cyrix chips when I was running the 2.2.x
kernels.
Linux Rules in many ways.
--
Real programmers don't bring brown-bag lunches. If the vending machine
doesn't sell it, they don't eat it. Vending machines don't sell
quiche.
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