Category | Description | Example |
Infrastructure | Utilization of specific infrastructure resources such as: CPU or memory utilization. Disk latency and bandwidth. Any metric that describes the health or utilization of the infrastructure. | CPU utilization > 80% on web tier virtual machines. |
Application | Consumption of application-specific resources such as active sessions. | Active sessions per web server > 200. |
End User (Real) | The response time of a live user transaction exceeds acceptable levels. Measured from the perspective of real users. Can be real time. | Load time on a specific object > 250ms Page latency > 100ms. |
End User (Synthetic) | The response time of a synthetic user transaction. Measured by executing synthetic transactions against application. | Load time on a specific object > 250ms. Complete synthetic session > 5s. |