This chapter introduces performance management using the VI SDK. It first introduces several basic concepts used in performance statistics: counters, intervals, rollup types, and real-time statistics. Then it introduces the
PerformanceManager managed object, focusing on how to retrieve performance metadata and how to retrieve the system performance data, including the historical data and real-time data. Along the way, this chapter also includes tips on how to avoid common problems and how to monitor performance without hurting performance too much.
Before discussing the managed object, let’s look at the basic concepts in performance statistics. Once these ...