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PMU counters and profiling basics (dendibakh.github.io)
39 points by chappar on June 3, 2018 | hide | past | favorite | 1 comment



For Java you can do better than perf. Sun's Performance Analyzer [1] has had hardware counter based profiling of real Java (not just JIT-compiled code) for more than 10 years. Open source async profiler [2] seems to be doing a decent job on the data collection side, though, doesn't go beyond a basic flame graph for analysis.

[1] https://en.wikipedia.org/wiki/Performance_Analyzer [2] https://github.com/jvm-profiling-tools/async-profiler




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