memory usage

[thisisit3]

My VPS comes with a 256 memory limit. I'd like to make sure i'm using it properly and if i'm near the limit, at which point i'd need raise the memory limit.

How can i monitor my usage?


PS:
'free' reports the following:

# free -m
             total       used       free     shared    buffers     cached
Mem:         16108        238      15869          0          0          0
-/+ buffers/cache:        238      15869
Swap:            0          0          0

[thisisit3]

nobody knows how to check their memory usage? weird.. :P

looking inside my VZPP, under QoS alerts:

- Mar 14, 2007 01:06:17 AM - Black zone - shmpages
- Mar 13, 2007 09:09:47 PM - Black zone - shmpages

based on the documentation, "shmpages" are:

"The total size of shared memory (including IPC, shared anonymous mappings and tmpfs objects) allocated by the processes of a particular VPS, in pages."

Does that mean i've reached my memory limit?

[thisisit3]

Problem solved. For everyones enjoyment, here is a small shell script that i wrote, it prints the hard memory limit and the current memory usage.

#!/bin/sh

let GMEM=`grep vmguarpages /proc/user_beancounters | awk '{print$4}'`/1024*4
let CMEM=`grep physpages /proc/user_beancounters | awk '{print$2}'`/1024*4

echo "Memory limit...: $GMEM MB"
echo "Current usage..: $CMEM MB"

[matzah]

Thanks thisisit3

[AlexKall]

Thank you very much, will come in handy!

[thisisit3]

You are both welcome. I've done lots of interesting modifications to my server, i'll try to post things as i go along.

I've also written a few modifed rule sets for BFD, since the default ones are badly written and not suitable for Jag's configuration.

[matzah]

May be you can start a thread of VPS tweaks?

There is a great thread @ WHT, but one here would be more personal for Jag customers, and would probably help a lot of others out as well.

Just an idea.