High mem usage, nothing in process list

Brandon.Wamboldt · 06-02-2009, 11:12 PM

What should my memory usage be for a server with 20 or 30 low bandwidth sites, email, ftp, and ssh?

I either am using 250mb or 750mb of 1gb. It 1gb to little? I was thinking of upgrading to 4gb and a dual core (So I can host a private 8 slot cs:s server as well). I am not sure how to read this, so here is a screenie of htop.

It my memory usage where it should be?

How can I auto kill processes using up to much of my cpu or memory?

http://northernlightstech.com/server.png

chrism01 · 06-02-2009, 11:22 PM

Show us the output of 'top'
Linux automatically uses all the RAM it can find, otherwise its (RAM) a wasted asset.
Even a low usage system will eventually use all the RAM as Linux caches everything it can.
Unless you are deep into your swap partition, I wouldn't worry.

syg00 · 06-02-2009, 11:35 PM

"F1" in htop will explain the colour coding in the memory usage field. The displayed value is adjusted actual usage (not counting buffer and cache usage as mentioned by chrism01).

You can kill tasks from within htop as well - whether you should is an altogether different question.

Brandon.Wamboldt · 06-03-2009, 05:46 AM

So do you think the hardware I have is good enough for what I do (1gb ram, celeron 2.4), or should I upgrade?

syg00 · 06-03-2009, 06:06 AM

How long is a piece of string ?.
A snapshot like that is meaningless - track your usage over time and base upgrades on that. sar from the sysstat package is good for historical recording.