up vote 1 down vote favorite

I am running a low-end server with about 1GB RAM and I was trying to optimize my ram. But after increasing my swap file and emptying the buffers, my total ram, judging from free -m, have lowered from 1 GB to 660 MB - and I cannot run my applications anymore.

Repro steps: I have used the commands 

echo 1 > /proc/sys/vm/drop_caches
echo 2 > /proc/sys/vm/drop_caches
echo 3 > /proc/sys/vm/drop_caches

Then, I have tried swapoff -a and swapon -a

And then I increased my swap file, as described here: https://www.linux.com/learn/increase-your-available-swap-space-swap-file

I have no idea what lowered my total memory. Could anyone help, please? Thanks in advance!

I am running Centos.

share|improve this question
    
Can you share the output of 'free -m'? – jsbillings Jun 4 '16 at 1:52
    
imgur.com/QTe3zfG <--- screenshot here. The total is 726 now. – MC_Kejml Jun 4 '16 at 6:54
    
And now it's 660 again... – MC_Kejml Jun 4 '16 at 7:24

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.