MINOR: Optimize bit-packing decoder performance by increasing unpackCount in Packer16 #3062
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Rationale for this change
The current Packer16 decoder implementation using JDK Vector API has performance limitations with unpackCount = 16 for bit-packing decoding.
What changes are included in this PR?
Modified ByteBitPacking512VectorLE.java to increase the processing batch size:
// Before
private static final int UNPACK_COUNT = 16;
// After
private static final int UNPACK_COUNT = 32;
Testing Details
Testing environment:
Performance results: