Parallel

Also known as the Throughput collector. Uses an implementation similar to the Parallel collector, but uses multiple threads to speed up GC. It is best suited to applications with medium- to large-sized data sets.

Parallel compaction allows use use of multiple threads to perform major collections in parallel, improving scalability.

• Enabled with -XX:+UseParallelGC.
  • Parallel compaction can be disabled with -XX:+UseParallelOldGC.
• The number of threads is set with -XX:ParallelGCThreads.

References

• The Parallel Collector

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Backlinks

• Class Data Sharing (public)
• SE 7 (public)
• SE 8 (public)