Users of an application are reporting performance issues. The following performance values are observed in the vSphere Web Client: - Host CPU utilization is 90% - Virtual Machine memory utilization is

CPU Ready is a host-level metric that measures the time a VM's vCPUs spend waiting for physical CPU cycles to become available; values above 10-20% indicate significant CPU contention on the host. With host CPU at 90%, the physical CPU is saturated, forcing VMs to queue for scheduling. This host-side bottleneck directly causes the application slowness reported by users.

While high VM memory utilization is noted, there are no memory-specific indicators such as balloon driver activity or swap usage that would point to a host memory shortage as the root cause.

A VM-level CPU shortage is a symptom of the host problem, not an independent root cause; the high CPU Ready metric specifically reflects host-side scheduling contention rather than a misconfigured VM vCPU count.

VM memory utilization above 90% alone does not explain the elevated CPU Ready values, which are a CPU-specific performance indicator unrelated to memory pressure.