We have to do benchmark testing as well as stress testing. Already high performance system was purchased and virtual machines are created for performance testing setup. I can see few limitations for this approach, since production boxes all are in physical servers. Earlier I've used virtual machines for automation regression execution.
Issues/Limitations of Virtualized Servers
- if (production environment != load test environment) then result could be wrong
- Increasing the risk of deployment failure
Did a google search and found following links, which give all the details, including Vmware claims.
Virtualization: Performance testing
Measuring the Performance Impact of Virtualizing a Web Application Server
Response to 'Load Testing a Virtual Web Application'
Virtualization performance testing tips
Anybody have experienced load testing on Virtualized servers? Please share your experience...
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