Overview of the onperf utility

The onperf utility is a graphical tool that you can use for displaying most of the same database server metrics that you can view on onstat utility reports.

The onperf utility provides the following advantages over the onstat utility:
  • Displays metric values graphically in real time
  • Allows you to choose which metrics to monitor
  • Allows you to scroll back to previous metric values to analyze a trend
  • Allows you to save performance data to a file for review at a later time

You cannot use the onperf utility on High-Availability Data Replication (HDR) secondary servers, remote standalone (RS) secondary servers, or shared disk (SD) secondary servers.