The HotSpot Group The HotSpot group is comprised of developers involved in the design, implementation, and maintenance of the HotSpot virtual machine. Introduction The HotSpot VM code base has been worked on by hundreds of people, over the course of 20 years, so far. It's big. There are around 3000 C/C++ header and source files, comprising more than 1.2 million lines of code. In addition to the ex
While delivering a training recently, I got a request to put together a JVM tuning cheat sheet. Given the 50+ parameters available on the Sun hotspot, this request is understandable. The diagram below is what I came up with. I’ve tried to narrow down the most important flags that will solve 80% of JVM performance needs with 20% of the tuning effort. This article assumes basic JVM tuning knowledge
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