How to Track Performance with Instance Graphs
Read-only check: 30 October 2026. The Usage page and its CPU, memory and disk charts were observed on a test instance. This check does not establish a guaranteed refresh interval or historical-data retention period.
Use the control panel's instance graphs to inspect resource use over a selected period. They help locate changes in activity; use operating-system and application monitoring to investigate the cause.
Default Instance Graphs
- Open Instances and select the intended instance.
- In Instances Manager, open Usage. The checked page is labelled Usage - Resources.
- Choose the period and aggregation in the selector. The checked interface offers Hour, Day, Week, Month and Year, each with average and max. Average and maximum describe different aggregations; compare like-for-like settings.
The checked resource view contains these three charts:
| Chart | Read the displayed values |
|---|---|
| CPU usage % | CPU utilization, with a percentage axis. |
| Memory usage | Total and Usage, with the displayed MBytes unit. |
| Disk IO | Disk Read and Disk Write, with Bytes/s on the checked chart; this is throughput, not an IOPS count. |
Usage - Resources on the test instance, 30 October 2026. The identifier is obscured; the plotted measurements are real test-instance data.
Read the legend and axis labels instead of relying on a fixed colour. Available charts, labels and controls can vary with the service and interface. A Network Traffic chart was not present in this checked resource view; do not assume every instance displays a fourth chart here.
Selecting Year requests that view; it does not guarantee a full year of retained samples. A newly created instance, a gap in collected data or an unavailable metric may leave part of a graph empty. An empty region is not proof of zero usage. If a view does not load, confirm the instance and selected period, reload the page, then report the affected chart and time range to support if needed.