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How to use jvm to implement a default garbage collector, for this problem, this article details the corresponding analysis and solution, hoping to help more small partners who want to solve this problem find a simpler and easier way.

jvm default garbage collector

jdk1.7 Default garbage collector Parallel Scavenge +Parallel Old

jdk1.8 Default garbage collector Parallel Scavenge +Parallel Old

jdk1.9 Default garbage collector G1

-XX:+PrintCommandLineFlagsjvm parameter to view default settings Collector type

-XX:+ PrintGC Details can also be judged by the new generation and old generation names of the printed GC logs

Serial collector:

DefNew: Yes Use-XX:+UseSerialGC (Cenozoic, older generations use serial recycling collectors).

Parallel collectors:

ParNew: Either use-XX:+UseParNewGC (parallel collector for Cenozoic generation, serial collector for older generation) or-XX:+ UseConcepMarkSweepGC (parallel collector for Cenozoic generation, CMS for older generation).

PSYoungGen: Either use-XX:+UseParallelOldGC (parallel collector for new generation, serial collector for old generation) or-XX:+UseParallelGC (parallel collector for new generation, serial collector for old generation)

garbage-first heap: Yes Use-XX:+UseG1GC

About how to use jvm to achieve a default garbage collector problem answer to share here, I hope the above content can have some help for everyone, if you still have a lot of doubts not solved, you can pay attention to the industry information channel to learn more related knowledge.

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