I have a web server(Solaris) that is running apache, mysql and nodejs. It is constantly near the max usage of the 1gb physical memory, here's an example from virtualmin:
Webmin version 1.520 Virtualmin version 3.81.gpl GPL Theme version 7.8 Time on server 28/Jun/2011 17:58 Kernel and CPU SunOS 5.11 on i86pc CPU load averages 2.21 (1 min) 2.16 (5 mins) 2.07 (15 mins) Running processes 141 Real memory 1024 MB total, 934 MB used Virtual memory 2 GB total, 1.29 GB used Local disk space 16.13 GB total, 2.86 GB used
and here is a sample from top command:
load averages: 2.44, 2.39, 2.19; up 3+22:11:31 18:02:47 142 processes: 140 sleeping, 2 on cpu CPU states: 76.3% idle, 16.1% user, 7.6% kernel, 0.0% iowait, 0.0% swap Memory: 32G phys mem, 1072M free mem, 76G total swap, 76G free swap PID
After googling "server memory usage solaris" I think I should be ok as long as my swap space isn't full? But I'm not too sure and wanted to get inputs on my situation.