Symptoms

• The user is running Ponemah 6.12 or lower. 

And

• When opening the software, the software hangs and CPU usage in the task manager shows 100% CPU usage.
• When opening an Experiment file, the software hangs and CPU usage in the task manager shows 100% CPU usage.

The software may eventually load, but the performance is poor when the user tries to interact with the software.

Solution

Upgrade the user to Ponemah 6.20 or higher.

Cause

The database architecture for Ponemah 6.12 and lower was less efficient.  Whenever an experiment was loaded, all parameter data would also be loaded from the Experiment's SQLlite database.  Because of how this data was stored in the SQLlite database, it could overload the CPU if enough parameter data existed (typically over 8 weeks of data).