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by cogman10
1277 days ago
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Flight recorder is a godsend and I've not seen it's equal in any other language/ecosystem. Any JVM anywhere can answer the question "why am I running slow" with a quick run of flight recorder. Memory, CPU, socket time, GC impact, TLB, thread dumps, etc. It's all there in one file that imposes something like a 1->2% performance impact if you run it constantly. It's just so good. |
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