A file of 5 MB on tmpfs file system uses 5 MB of RAM or more?

Scott Wood scottwood at freescale.com
Sat Jan 19 02:58:53 EST 2008

On Fri, Jan 18, 2008 at 02:15:02PM +0100, DI BACCO ANTONIO - technolabs wrote:
> I have a linux- board with an MPC880 with 16MB ram and 16 MB
> flash. 
> Normally I have 9-10 MB of free RAM.
> If I allocate 5 MB of ram memory, the system continues to work normally,

Are you sure the RAM was actually allocated (i.e. did you write to all of
the pages)?


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