If profiler is not the answer, what other choices do we have?
问题 After watching the presentation \"Performance Anxiety\" of Joshua Bloch, I read the paper he suggested in the presentation \"Evaluating the Accuracy of Java Profilers\". Quoting the conclusion: Our results are disturbing because they indicate that profiler incorrectness is pervasive—occurring in most of our seven benchmarks and in two production JVM—-and significant—all four of the state-of-the-art profilers produce incorrect profiles. Incorrect profiles can easily cause a performance analyst to