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Performance Engineering

User Concurrency

Performance testing terminology is not well defined and one of the most ambiguous terms is user concurrency. Re-reading Load Testing: Concurrent Users …

Performance vs. Scalability

After attending Sergey Chernyshev’s (@sergeyche) Scalability vs. Performance presentation at NY Web Performance Meetup and reading Scalability: it’s the question that drives …

Performance Engineering: Historical View

It is interesting to look how handling performance changed with time. Probably performance went beyond single-user profiling when mainframes started to support …

Load Testing: Its Present and Future

Recent trends of agile development, DevOps, Web and Social Media sites somewhat question importance of load testing. Some (not many) openly saying …