Memory Usage
Per user you must supply about 5 KB of RAM. Per sensor you
must supply about 5 KB of RAM without the recent history graphs and about 10k
with recent history graphs enabled.
Sample calculation: 1000 users with 5 sensors each:
1000x5kb plus 5x1000x10kb => 55 MB RAM
Note: To keep system performance up, this memory should be
physically accessible to avoid slow page file swapping!