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Type:
Enhancement
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Resolution: Fixed
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Priority:
P4
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Affects Version/s: None
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Component/s: core-libs
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8203563 | 11.0.1 | Claes Redestad | P4 | Resolved | Fixed | team |
A quick exploration of methods inherited from abstract base classes in ArrayList and ArrayList.SubList show that there is some potential for performance improvements.
With a quick prototyping we can provoke ~1.5x speedups in SubList.indexOf, ~1.2x in ArrayList.equals etc, in some cases allowing implementations to become allocation free:
http://cr.openjdk.java.net/~redestad/scratch/arraylist.overrides.00/
With a quick prototyping we can provoke ~1.5x speedups in SubList.indexOf, ~1.2x in ArrayList.equals etc, in some cases allowing implementations to become allocation free:
http://cr.openjdk.java.net/~redestad/scratch/arraylist.overrides.00/
- backported by
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JDK-8203563 (coll) Examine overriding inherited methods in ArrayList and ArrayList.SubList
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- Resolved
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- relates to
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JDK-8196207 Inefficient ArrayList.subList().toArray()
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- Resolved
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- Resolved
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