7 Matching Annotations
  1. Aug 2022
  2. Nov 2021
    1. 整个内存数据区域是属于当前进程的,当前进程拥有所有的资源和数据。而直接内存是所有进程共享的。 其中栈和程序计数器是线程私有的,也就是每一个线程拥有自己独立的区域。互相不干扰。

      我们描述的这个区域是属于进程的,里面包括堆 和每个线程私有的 栈 本地方法栈 程序计数器。 元空间是在直接内存里面,直接内存是 所有 进程共享的

  3. Nov 2018
    1. in general, clojure doesn't have java interop, it has jvm interop so in places where the java language doesn't map 1:1 to the jvm, clojure gives something that matches the raw jvm, not something that matches the java language

      jvm not java interop

  4. Jan 2018
    1. Default Value

      Please note that the values listed below are the default ones. An Option can represent a Boolean toggle flag (i.e. HeapDumpOnOutOfMemoryError, PrintConcurrentLocks). For such Options, '+' and '-' flags deal with Boolean toggling. In short:

      • '+' means Enable (or set to '1');
      • '-' means Disable (or set to '0').

      For example, in the table pertaining to Debugging Options, by default the -XX:-HeapDumpOnOutOfMemoryError is Disabled, because it has the - prepended to it. To actually Enable it, change that with +, yielding the variant -XX:+HeapDumpOnOutOfMemoryError.

  5. Sep 2017
    1. but the true technology of Java is not in the language, but the virtual machine itself. The JVM as it stands today, is a fast, abstract machine that you can plug any languages into, and is able to operate at speeds comparable to natively compiled binaries.

      This is something really neat to ponder at... Thank you for your insight!

  6. Jun 2017