In Windchill one can capture and log any JMX MBean attribute value on a
scheduled basis via creation/configuration of a Summary MBean.
The case in question involves the TotalActiveUserCount attribute of the
MBean with ObjectName "com.ptc:wt.subsystem=Monitors,Name=ActiveUsers"
/in the server manager/.
In X-20 this (along with most other items in the server status page) is
logged to the database and charted for you out-of-the-box.
In R9.1 M050 the same database logging capability (AsyncJDBCAppender) is
present -- and thus configuring a Summary logger to log to an
appropriate AsyncJDBCAppender is possible given sufficient time/effort.
--
Jess Holle