A few days ago I read an article that was interesting.May be faced with reduced performance When you run the virtualization platform.

Here I give you some tips in this regard:

Optimizing vSphere Performance: Why and How

1. Use capacity analysis tools
2. Right-size virtual machines
3. Replace your hardware
4. Utilize Storage I/O Control (SIOC) and Storage DRS (SDRS)
5. Reduce VM snapshots
6. Consider SSD
7. Utilize Distributed Resource Scheduler (DRS)
8. Run the latest version of vSphere
9. Use the latest VM virtual hardware version
10. Install VMware Tools in all virtual machines