# Health

This view will help you to find any bottleneck or to compare the metrics of your infrastructure.

### Heatmap

A heatmap allows its reader to understand when your VMs or hosts are stressed. Values are relative, thus it's easy to detect trends or spikes.

[![](https://xen-orchestra.com/blog/content/images/2015/08/db1.png)](https://xen-orchestra.com/blog/xen-orchestra-4-4/#heatmapforinfrastructurehealth).

### Event correlation

This is the place to compare metrics on comparable objects (VMs to VMs, hosts to hosts).

[![](https://xen-orchestra.com/blog/content/images/2015/09/correlate_small.jpg)](https://xen-orchestra.com/blog/xen-orchestra-4-6#eventcorrelation).