How do I know when pfsense is running low on memory

[pfs]

Hi,

I am running a pfsense test box on a Pentium III 500mhz, with 768MB RAM. I am also running snort. But do not have proxy enabled  (there is a proxy feature I think ? ) . On the pfsense site, it recommends 1 Gig of RAM. How can I find out if it is running low on memory ?  Does swap paritition usage tell me?

[almabes]

Check out the dashboard.
Memory usage is right there.  If the % is high, memory is low.