These values are important to overall virtual machine health. Virtualized hosts show additional measurements related to CPU performance. Because Dynatrace averages CPU consumption across 10-second intervals, momentary fluctuations in CPU consumption which happen during the 10-second cycle may be flattened out, but the average CPU consumption over each of the 10-second periods is accurate.Īdditional performance measurements for virtualized hosts The average CPU consumption of each 10-second interval is used to calculate total CPU usage. This means that a process group that's composed of a single threaded process on a 4-core system will reach maximum CPU usage at 25% (4 x 25% = 100%).Ī high CPU usage measurement results in a CPU saturation 'resource event' and the generation of a problem.ĬPU usage measurements are captured every 10 seconds. The same calculation method is used for both total CPU usage of a system and CPU usage of a specific process group. This percentage is computed for all available CPU cores and scaled to a range of 0–100%. This is the percentage of time that a CPU is busy processing data (i.e., when it's not idle). Network services (currently, DNS performance)ĬPU usage is the primary measurement used to calculate CPU health.To assess health, the following performance metrics are captured for each host and presented on each Host overview page:

Individual Host pages show problem history, event history, and related processes for each host.

Memory on disk graph