The solution: re-sizing the environment
Liberty Mutual selected Rego Consulting to help ensure the required level of performance of its PPM system.
Rego experts conducted a performance review which revealed that the application performed heap data dumps as large as 1.5 gigabytes (GB) and 1GB for the BG memory, which meant that Java Virtual Machines spent significant time garbage collecting.
The performance review also indicated low database memory. For Oracle databases, Rego recommends that the buffer cache hits over 99 percent as fetching data from memory is significantly faster than fetching data from disk.
Rego recommended and implemented additional JVM and BG memory, enlarged database cores, and added JVM for XOG users, administrators, and schedulers.