CPU Ready
Description: CPU Ready is the time a vCPU is ready to run but is not being scheduled on a physical CPU
Cause: CPU Contention
Measurement: CPU Ready realtime from vSphere GUI (20 seconds data points)
Units: ms
Good: < 1000 ms -> (1000 / (20s * 1000)) * 100 = 5%
Bad: > 2000 ms -> (2000 / (20s * 1000)) * 100 = 10%
Measurement: CPU Ready realtime from esxtop
Units: %
Good: < 5%
Bad: > 10%
References:
Converting between CPU summation and CPU % ready values (2002181)