Java虚拟机如何决定使用哪种垃圾回收方法？

Question

I have read a few articles describing how the Java virtual machine uses different techniques for collecting garbage.

How does the Java virtual machine decide which method of garbage collection to use?

Or, if the decision rests on the programmer, what constitutes changing the method of garbage collection?

Thank you.

(Example of one article: https://www.javaworld.com/article/2078645/java-se/jvm-performance-optimization-part-3-garbage-collection.html )

Answer 1

You can specify which GC collector to use via jvm options. Checkout that link: https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/collectors.html

It contains various information about how to choose a particular collector.

Also you can see this answer to see which collector your jvm uses: find which type of garbage collector is running