L. C. Hsieh created SPARK-57042:
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Summary: Add WritableColumnVectorBulkFillBenchmark
Key: SPARK-57042
URL: https://issues.apache.org/jira/browse/SPARK-57042
Project: Spark
Issue Type: Test
Components: SQL
Affects Versions: 4.3.0
Reporter: L. C. Hsieh
Currently there is no benchmark covering the constant-value bulk-fill
APIs on WritableColumnVector (putBooleans, putBytes, putShorts, putInts,
putLongs, putNulls). SPARK-57024 and SPARK-57036 are optimizing several
of these methods; this benchmark establishes a stable baseline so future
optimizations can be tracked.
The benchmark sweeps count = 1, 8, 64, 512, 4096, 65536 to cover both
the call-overhead dominated regime (small count) and the memory
bandwidth dominated regime (large count). Each case runs on both
OnHeapColumnVector and OffHeapColumnVector.
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