[PLUG] Do I need more RAM?y

[Carlos Konstanski]

On Wed, 20 Jan 2010, Mark Phillips wrote:

> Date: Wed, 20 Jan 2010 21:37:57 -0700
> From: Mark Phillips <mark at phillipsmarketing.biz>
> Reply-To: "General Linux/UNIX discussion and help;	civil and on-topic"
>     <plug at lists.pdxlinux.org>
> To: Phoenix Linux Users <plug-discuss at lists.plug.phoenix.az.us>,
>     Portland Linux Users Group <plug at lists.pdxlinux.org>
> Subject: [PLUG] Do I need more RAM?
> 
> I have a Zope/Plone 2.5 web site running on Debian on a Linode virtual host.
> It has grown over the last few years, and now I need to add some more disk
> space. The site is for a school newspaper, so from August - June, students
> add news articles and photos.
>
> I was also looking at the output of top, and perhaps I need more RAM as
> well? Top shows I have only 5 MB free out of 368 MB of total RAM, but I am
> only using 9% of my swap, so perhaps I don't need more RAM. The site does
> not seem slow.
>
> Tasks:  69 total,   1 running,  68 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,
> 0.0%st
> Mem:    368836k total,   363364k used,     5472k free,     8316k buffers
> Swap:   524280k total,    46716k used,   477564k free,    67436k cached
>
> Thanks for any suggestions you may have.
>
> Mark

I don't think you can tell much from this output because of the usage
of the disk cache. You would need to run a command like "ps fauxw" and
examine the memory usage of individual processes.

Carlos