[NCLUG] Testing memory pressure

[dann frazier]

On Tue, Jan 18, 2011 at 08:19:23PM -0700, Sean Reifschneider wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Boot with the "mem=" kernel parameter set to something smaller than
> physical RAM.  IIRC, you can specify it as "mem=512M", but I may be
> mis-remembering.
> 
> The default parameters for the RAM disc limit it's size to at most half
> your RAM, you have to specify module parameters to adjust this if you want
> to go that route, but I don't recall what they are off hand, use "modinfo"
> to get it to tell you?  At this point I forget the module name...

I assume we're talking about a tmpfs here, in which case this is a
mount option. See mount(8) (Mount options for tmpfs section) for
details.