How do you check how much RAM used?

I have a dedicated server with 1GB RAM but when I SSH into one of my accounts (I did not restrict the usage), it shows the following:

Mem: 1029432K av, 1015612K used, 13820K free, 0K shrd, 99684K buff
Swap: 522072K av, 0K used, 522072K free 762112K cached

What happened to my 1GB RAM? Is there a way to check? Thanks.

 

 

 

 

Top