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Align TriStateIntCache

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This commit is contained in:
Zoe Gidiere
2025-12-11 01:56:20 -07:00
parent 97b4ea6d94
commit bba55f2669
2 changed files with 16 additions and 5 deletions
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16
common/api/src/main/java/com/dfsek/terra/api/util/collection/TriStateIntCache.java
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@@ -24,8 +24,22 @@ public class TriStateIntCache {
ARRAY_BASE_OFFSET = UnsafeUtils.UNSAFE.arrayBaseOffset(long[].class);
}
private static int getOptimalMaxKeys(int requestedKeys) {
// 192 keys fill the first cache line exactly (along with the 16-byte header)
if (requestedKeys <= 192) {
return 192;
}
// For every additional line, we fit 256 keys (64 bytes * 4 keys/byte)
// We calculate the overflow beyond 192, round up to the nearest 256, and add it back.
int overflow = requestedKeys - 192;
int chunks = (overflow + 255) >>> 8; // Fast ceil division by 256
return 192 + (chunks << 8); // chunks * 256
}
public TriStateIntCache(int maxKeySize) {
this.data = new long[(maxKeySize + 31) >>> 5];
this.data = new long[(getOptimalMaxKeys(maxKeySize) + 31) >>> 5];
}
/**