Architecting a vRealize Operations Management Solution : Performance and Scalability : 8.4 Performance Impact on VMware vCenter Server
   
8.4 Performance Impact on VMware vCenter Server
vRealize Operations Manager puts the following load on a vCenter Server increasing with each vRealize Operations Manager node deployed.
Table 6. vRealize Operations Manager Impact on vCenter Server
Attribute
Impact
CPU
Increase by 5 to 10 percent once every 5 minutes, for approximately 30 to 60 seconds
Memory
40MB to 50MB once every 5 minutes
VMware vCenter Server Sessions
10 to 12 constant sessions, depending on inventory size
 
Design Considerations
Although no noticeable impact is expected on vCenter Server, consider increasing resources for each monitored vCenter Server.