JDK-8189726 : Release Note: JEP 307: Parallel Full GC for G1
- Type: Sub-task
- Component: hotspot
- Sub-Component: gc
- Affected Version: 10
- Priority: P3
- Status: Closed
- Resolution: Delivered
- Submitted: 2017-10-20
- Updated: 2018-03-26
- Resolved: 2018-01-26
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Unresolved : Release in which this issue/RFE will be addressed.
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| JDK 10 |
|---|
10Resolved  |
Description
Improves G1 worst-case latencies by making the full GC parallel. The G1 garbage collector is designed to avoid full collections, but when the concurrent collections can't reclaim memory fast enough a fall back full GC will occur. The old implementation of the full GC for G1 used a single threaded mark-sweep-compact algorithm. With JEP 307 the full GC has been parallelized and now use the same amount of parallel worker threads as the young and mixed collections.