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<TITLE>RE: A file of 5 MB on tmpfs file system uses 5 MB of RAM or more?</TITLE>
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<P><FONT SIZE=2>No I simply did several malloc(s) without writing to the allocated space.<BR>
<BR>
This means that the pages are not allocated really?<BR>
<BR>
<BR>
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-----Original Message-----<BR>
From: Scott Wood [<A HREF="mailto:scottwood@freescale.com">mailto:scottwood@freescale.com</A>]<BR>
Sent: Fri 18/01/2008 16.58<BR>
To: DI BACCO ANTONIO - technolabs<BR>
Cc: linuxppc-embedded@ozlabs.org<BR>
Subject: Re: A file of 5 MB on tmpfs file system uses 5 MB of RAM or more?<BR>
<BR>
On Fri, Jan 18, 2008 at 02:15:02PM +0100, DI BACCO ANTONIO - technolabs wrote:<BR>
> I have a linux-2.6.19.2 board with an MPC880 with 16MB ram and 16 MB<BR>
> flash.<BR>
> Normally I have 9-10 MB of free RAM.<BR>
> <BR>
> If I allocate 5 MB of ram memory, the system continues to work normally,<BR>
<BR>
Are you sure the RAM was actually allocated (i.e. did you write to all of<BR>
the pages)?<BR>
<BR>
-Scott<BR>
<BR>
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