Add eviction metrics in binary allocator#14432
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OneSizeFitsQuorum merged 3 commits intoapache:masterfrom Dec 17, 2024
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Add eviction metrics in binary allocator#14432OneSizeFitsQuorum merged 3 commits intoapache:masterfrom
OneSizeFitsQuorum merged 3 commits intoapache:masterfrom
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iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/binaryallocator/arena/Arena.java
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...ns/src/main/java/org/apache/iotdb/commons/binaryallocator/metric/BinaryAllocatorMetrics.java
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...ns/src/main/java/org/apache/iotdb/commons/binaryallocator/metric/BinaryAllocatorMetrics.java
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...ore/node-commons/src/main/java/org/apache/iotdb/commons/binaryallocator/BinaryAllocator.java
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...ore/node-commons/src/main/java/org/apache/iotdb/commons/binaryallocator/BinaryAllocator.java
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iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/binaryallocator/arena/Arena.java
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Signed-off-by: OneSizeFitQuorum <tanxinyu@apache.org>
MrQuansy
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* add eviction metrics * fix * fix overflow Signed-off-by: OneSizeFitQuorum <tanxinyu@apache.org> --------- Signed-off-by: OneSizeFitQuorum <tanxinyu@apache.org> Co-authored-by: OneSizeFitQuorum <tanxinyu@apache.org>
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Caideyipi
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Mar 25, 2026
* add eviction metrics * fix * fix overflow --------- Signed-off-by: OneSizeFitQuorum <tanxinyu@apache.org> Co-authored-by: OneSizeFitQuorum <tanxinyu@apache.org>
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Description
This PR introduces new metrics to track memory eviction statistics in the Binary Allocator component. The allocator implements two distinct eviction strategies:
Sample-based eviction: Periodically samples memory regions to identify eviction candidates
GC-based eviction: Leverages garbage collection cycles to reclaim unused memory
The primary enhancement is the addition of metrics that monitor the cumulative size of evicted memory through both strategies. These metrics provide visibility into the allocator's memory reclamation behavior and efficiency.