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Enhancement
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Resolution: Fixed
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P3
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8u40, 9
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b35
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8083089 | emb-9 | Bengt Rutisson | P3 | Resolved | Fixed | b35 |
| JDK-8063345 | 8u45 | Bengt Rutisson | P3 | Resolved | Fixed | b01 |
| JDK-8059890 | 8u40 | Bengt Rutisson | P3 | Resolved | Fixed | b11 |
| JDK-8071081 | emb-8u47 | Bengt Rutisson | P3 | Resolved | Fixed | team |
When the flags G1HeapWastePercent and G1MixedGCLiveThresholdPercent were introduced their default values were picked without much performance analysis.
Recent performance runs indicate that G1HeapWastePercent often benefit from a lower value and that G1MixedGCLiveThresholdPercent benefit from a higher value.
Suggestion is to change the default for G1HeapWastePercent to 5 (used to be 10) and G1MixedGCLiveThresholdPercent to 85 (used to be 65).
Recent performance runs indicate that G1HeapWastePercent often benefit from a lower value and that G1MixedGCLiveThresholdPercent benefit from a higher value.
Suggestion is to change the default for G1HeapWastePercent to 5 (used to be 10) and G1MixedGCLiveThresholdPercent to 85 (used to be 65).
- backported by
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JDK-8059890 G1: Change the default values for G1HeapWastePercent and G1MixedGCLiveThresholdPercent
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- Resolved
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- Resolved
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- Resolved
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- Resolved
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- relates to
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JDK-8060185 Update GC tuning guide with new default values for G1HeapWastePercent and G1MixedGCLiveThresholdPercent
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- Closed
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