linux-kernel - Re: Question about free/used memory on Linux

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Message-ID: <471C8ED4.7080400@aitel.hist.no>
Date:	Mon, 22 Oct 2007 13:51:48 +0200
From:	Helge Hafting <helge.hafting@...el.hist.no>
To:	"Ravinandan Arakali (rarakali)" <rarakali@...co.com>
CC:	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: Question about free/used memory on Linux

Ravinandan Arakali (rarakali) wrote:
> Hi Vaidy,
> Thanks for clarifying several of my doubts.
>
> To answer your question about my intention, we currently have a 
> system with 2 GB RAM and I need to find out the actual used and 
> free memory so that we can decide if the same setup(applications,
> tmpfs etc.) can run on another system with lesser memory.
>   
You can test this directly.
Boot your 2G machine with
mem=<size of smaller system>
Then the machine uses less memory, you get
a realistic test of how the smaller machine will
perform.


Helge Hafting
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