# Subnet Performance

The Subnet Performance displays a statistical overview of the fabric to provide insight into the hot spots. It contains two groups of performance: Utilization and PM Counter Categories.

- Utilization Group

- PM Counter Categories Group

Refer to Intel® Omni-Path Fabric Suite Fabric Manager User Guide, in the section titled "Counter Classification" for more information on how Performance and “error” groups work, how thresholds are set, weights settings, adding PM groups, etc).