JDK-8183573 : Refactor CodeHeap and AOTCodeHeap to devirtualize hot methods
- Type: Enhancement
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 9,10
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2017-07-05
- Updated: 2017-09-01
- Resolved: 2017-07-10
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| JDK 10 |
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10 b21Fixed  |
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Description
In CodeCache::find_blob methods, we're doing virtual calls to each CodeHeap, resulting in up to 4 virtual calls (when AOT is enabled). By refactoring so that more code is shared between AOTCodeHeap and CodeHeap, we can reduce the number of virtual calls per find_blob call, effectively speeding up stack walking.
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