Performance Monitor (Legacy)
This feature ensures backward compatibility for build configurations created before the 2026.1 update. Starting with version 2026.1, it is no longer needed, as all TeamCity builds automatically track agent CPU, disk, and memory usage. Collected data is shown on the Performance Monitor tab of the Build Results Page.

Automatic data collection is disabled if:
This build configuration or any of its parent projects have the
teamcity.perfmon.feature.enabled=falseparameter.This build configuration has the Performance Monitor (Legacy) build feature, but it's currently disabled.
Learn more: Performance Monitor Tab.
20 March 2026