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Serial serialold parnew of JVM garbage collector
2022-07-06 17:16:00 【TiggerRun】
Garbage collector
Serial & SerialOld
- Serial It's a new generation of garbage collectors , Use
Copy algorithm
- SerialOld It's the garbage collector of the old days , Use
Mark - Sorting algorithm
- Serial and SerialOld yes
Serial
The garbage collector , There is only one thread to handle garbage collection , And isSTW
Of .
ParNew
- ParNew It's actually Serial The parallel version of , Shared a lot of code
- ParNew Is a new generation of parallel garbage collectors
- ParNew Using the replication algorithm
ParNew Certain ratio Serial Are you efficient ?
In a multi-core environment ,ParNew Performance ratio of Serial high , Through parallel reductionSTW
Time for
In a single core environment ,ParNew Its performance must be inferior to Serial
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