XenCenter provides real-time and historical graphs:
(assuming 75% max sustainable utilization) citrix xenserver performance monitoring
Memory overcommitment allows you to assign more RAM to VMs than physically exists on the host. Citrix Hypervisor uses "ballooning" to reclaim unused memory from VMs. citrix xenserver performance monitoring
XenServer stores performance data in under /var/lib/xcp/rrd/ . You can extract them using: citrix xenserver performance monitoring
When looking at your dashboard, it is easy to get overwhelmed by data. Focus on these four key performance indicators (KPIs) to cut through the noise.
The most accessible tool is the (formerly XenCenter). It provides a real-time view of your infrastructure.
xe vm-console vm="Control domain on host"