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Enhancement
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Resolution: Fixed
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P4
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21, 25, 26
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b05
Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
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JDK-8365705 | 25.0.2 | Aleksey Shipilev | P4 | Resolved | Fixed | master |
When profiling CTW runs, I noticed we spend a lot of time dealing with deoptimization. We do this excessively, deoptimizing before compilation on every tier. This is excessive: Hotspot honors compilation requests on subsequent levels without the need for explicit deoptimization. Not doing deopt between tiers greatly improves CTW performance.
- backported by
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JDK-8365705 CTW: Skip deoptimization between tiers
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- Resolved
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- links to
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Commit(master) openjdk/jdk25u/037133e8
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Commit(master) openjdk/jdk/cd6caedd
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Review(master) openjdk/jdk25u/90
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Review(master) openjdk/jdk/26013