JDK9-G1 -XX:ParallelGCThreads 默认选择源码解析

 

参数含义

源码分析 

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参数含义

-XX:ParallelGCThreads 并行阶段最大的线程数

源码分析 

1. hotspot/src/share/vm/runtime/vm_version.hpp

2. /*
    * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    *
    * This code is free software; you can redistribute it and/or modify it
    * under the terms of the GNU General Public License version 2 only, as
    * published by the F