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Added a variation of BPV32 using only r/w long

This commit is contained in:
expani 2024-10-26 21:54:44 +05:30
parent 06dd48fcfd
commit 775fb387b6
1 changed files with 30 additions and 0 deletions
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30
lucene/benchmark-jmh/src/java/org/apache/lucene/benchmark/jmh/DocIdEncodingBenchmark.java
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@ -509,6 +509,34 @@ public class DocIdEncodingBenchmark {
}
}
}
class Bit32OnlyRWLongEncoder implements DocIdEncoder {
@Override
public void encode(IndexOutput out, int start, int count, int[] docIds) throws IOException {
int i;
for (i = 0; i < count - 1; i += 2) {
long packedLong = ((long) docIds[i] << 32) & docIds[i + 1];
out.writeLong(packedLong);
}
for (; i < count; i++) {
out.writeLong(docIds[i]);
}
}
@Override
public void decode(IndexInput in, int start, int count, int[] docIds) throws IOException {
int i;
for (i = 0; i < count - 1; i += 2) {
long packedLong = in.readLong();
docIds[i] = (int) (packedLong >>> 32);
docIds[i + 1] = (int) (packedLong & 0xFFFFFFFFL);
}
for (; i < count; i++) {
docIds[i] = (int) in.readLong();
}
}
}
}
interface DocIdProvider {
@ -528,6 +556,8 @@ public class DocIdEncodingBenchmark {
DocIdEncodingBenchmark.DocIdEncoder.Bit24Encoder.class,
24,
DocIdEncodingBenchmark.DocIdEncoder.Bit32Encoder.class,
32,
DocIdEncoder.Bit32OnlyRWLongEncoder.class,
32);
/**