Analyzing performance can be challenging, especially when diagnosing regressions. Finding the right methods to investigate performance issues is often time-consuming and complex. You may have heard of perf, a powerful Linux tool for performance measurement, available from the kernel. This post will guide you through using perf to analyze performance on Linux, serving as a practical “quick start” guide for those new to profiling Java applications with perf. It’s not meant to be a comprehensive tutorial, as many of those already exist in the extensive documentation of perf and other excellent sources. However, the examples provided may be all you need or, at the very least, give you an idea of where to look for deeper insights.
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