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Java EE 7 Performance Tuning and Optimization by Osama Oransa

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Understanding performance issues

We can define performance tuning issues in general as any issue that causes the application to perform outside the target service-level agreement.

Performance issues can take many forms, for example, increased response time is one of the common forms. Let's list a few forms of application performance issues, as follows:

  • Slow transactional response with or without application workload
  • Failure to meet the processing rate, for example, 1,000 submitted orders per second
  • Failure of the application to serve the required number of concurrent users
  • Non-responding application under workload
  • Transactional errors during application workload, which could be reported by application users or seen in the application logfiles
  • Mismatch ...

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