The metva.com HitMeter is a java applet which displays
real-time hit rates on an Apache web server.
(Note that metva.com is only a small server behind a
low-bandwidth link so the scale of the display is
deliberately low in this example).
The HitMeter has been successfully
deployed on single servers running at hundreds of hits/s
and indeed across server pools with much higher rates.
Below are three instances of the Hitmeter showing data
from the same server. Each instance is set to query the
server once every 3 seconds and so each should settle to
a 1 hit/sec rate after 5 or 10 seconds. Try browsing metva
in another window to see the hitmeter report the server use.