[wplug] Use only a portion of system memory?

[Paul Armor]

Hi,

Depending on the hardware config, this may or may not have the effect 
you're looking for (I'm thinking along the lines of interleaving with dual 
channel and the like)... it comes down to what you're trying to benchmark.

Cheers,
Paul

On Fri, 12 Jan 2007, Eli Heady wrote:

> On 1/12/07, Patrick Wagstrom <pwagstro at andrew.cmu.edu> wrote:
>> On Fri, 2007-01-12 at 12:03 -0500, Eli Heady wrote:
>> > Odd situation, but I need to use only half of the system memory for a
>> > benchmarking project.
>> >
>> > Anybody know how I can accomplish this (without removing the physical 
>> RAM)?
>> 
>> Since you're removing half the ram from the pool, you should be able to
>> pass a MEM=256M or something like that to the kernel (see lilo.conf or
>> grub.conf to pass it) if the machine has 512MB.  It tends to get a bit
>> flunky if you're not using powers of 2 though.  Just a word of warning
>> on that.
>> 
>
> Thanks, I'll try that.