How to stress test virtual machines

virtualization.info: How to stress test virtual machines: "How to stress test virtual machines
Sunday, January 15, 2006 0 Comments Performances are the greatest concerns CIO/CTO usually have approaching virtualization.
You surely would compare a virtual machine performance against a physical server, but you could also be in need of exploring how different virtualization technologies perform.
The first aspect you should test is I/O performances: physical raw partitions, proprietary filesystems, remoted SANs systems, local virtual IDE or SCSI disk subsystem. All of these configurations should be tested and compared with each other and against physical machines I/O performances.
Another second aspect you could test is network performances since virtual network adapters devices can handle traffic in different ways and be more or less efficient.
The best way to stress test a VM is to use standard tool for physical machines stress testing."