Frank Du created ARROW-8141:
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Summary: [C++] Optimize BM_PlainDecodingBoolean performance using
AVX512 Intrinsics API
Key: ARROW-8141
URL: https://issues.apache.org/jira/browse/ARROW-8141
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Frank Du
Attachments: image-2020-03-18-11-08-38-201.png
We are running benchmark on the arrow avx512 build, perf show unpack1_32 as the
major hotspot for BM_PlainDecodingBoolean indicator.
Implement this func with Intrinsics code show big improvements. See below the
results on CLX 8280 cpu which is capable of AVX512.
|Benchmark|Indictor|unit|default sse build|avx512 build|avx512 build +
Intrinsics|Intrinsics improvements|
|parquet-encoding-benchmark|BM_PlainDecodingBoolean/1024|G/s|1.55394|3.77701|5.02805|1.331224964|
|BM_PlainDecodingBoolean/4096 |G/s|1.83472|5.3826|8.3443|1.550235945|
|BM_PlainDecodingBoolean/32768|G/s|2.00957|6.1258|10.3793|1.694358288|
|BM_PlainDecodingBoolean/65536|G/s|2.02249|6.20035|10.5778|1.706000468|
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