jbellis commented on code in PR #12421:
URL: https://github.com/apache/lucene/pull/12421#discussion_r1290387939
##########
lucene/core/src/java/org/apache/lucene/util/hnsw/OnHeapHnswGraph.java:
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@@ -169,35 +170,43 @@ public NodesIterator getNodesOnLevel(int level) {
@Override
public long ramBytesUsed() {
+ // local vars here just to make it easier to keep lines short enough to
read
+ long AH_BYTES = RamUsageEstimator.NUM_BYTES_ARRAY_HEADER;
+ long REF_BYTES = RamUsageEstimator.NUM_BYTES_OBJECT_REF;
+
long neighborArrayBytes0 =
- nsize0 * (Integer.BYTES + Float.BYTES)
- + RamUsageEstimator.NUM_BYTES_ARRAY_HEADER
- + RamUsageEstimator.NUM_BYTES_OBJECT_REF * 2
- + Integer.BYTES * 3;
+ (long) nsize0 * (Integer.BYTES + Float.BYTES)
+ + AH_BYTES * 2
+ + REF_BYTES
+ + Integer.BYTES * 2;
Review Comment:
i don't think so, but it was missing 1 byte for the boolean. I've added
comments to clarify
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