Shulou(Shulou.com)06/02 Report--

What this article shares with you is about how to set and analyze JVM parameters. The editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

No matter in the process of YGC or Full GC,GC, there will be interruptions in the process of program operation. Choosing different GC strategies correctly and adjusting the parameters of JVM and GC can greatly reduce the problems of program interruption caused by GC work, and then appropriately improve the work efficiency of Java programs. But adjust GC is an extremely complex process, because each program has different characteristics, such as: web and GUI procedures are very different (Web can be appropriate pause, but GUI pause is unacceptable to customers), and because the configuration running on each machine is different (the number of main cup, memory is different), so the type of GC used will be different (see GC type and how to choose). Here we will focus on introducing the setting of some important parameters of JVM and GC to improve the performance of the system.

JVM memory composition and GC related content can be found in the previous article: JVM memory composition GC Strategy & memory request.

For an example of the meaning of JVM parameter, please see example analysis.

Parameter name meaning default-Xms initial heap size physical memory 1x64 (

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