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Type:
Improvement
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Status: Open
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Priority:
Normal
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Resolution: Unresolved
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Fix Version/s: 4.0
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Component/s: Local/Compaction
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Labels:None
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Change Category:Performance
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Complexity:Normal
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Platform:All
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Impacts:None
There are several opportunities to significantly reduce the amount of garbage generated by compaction and the local read path. This will serve as a top level jira for related changes.
1.
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Add compaction allocation measurement test to support compaction gc optimization. |
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Patch Available | Blake Eggleston |
2.
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Minimize BTree iterator allocations |
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Changes Suggested | Blake Eggleston |
3.
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Avoid unnecessary collection/iterator allocations during btree construction |
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Changes Suggested | Blake Eggleston |
4.
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Reduce heap footprint of commonly allocated objects |
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Patch Available | Blake Eggleston |
5.
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Pool Merge Iterators |
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Changes Suggested | Blake Eggleston |
6.
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Add byte array backed cells |
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Patch Available | Blake Eggleston |
7.
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Remove list iterators |
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Ready to Commit | Blake Eggleston |
8.
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Add compaction-related JMH tests |
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Patch Available | Benedict Elliott Smith |