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https://issues.apache.org/jira/browse/ARROW-8141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank Du closed ARROW-8141.
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> [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
> Assignee: Frank Du
> Priority: Minor
> Labels: pull-request-available
> Fix For: 0.17.0
>
> Attachments: image-2020-03-18-11-08-38-201.png
>
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> 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.
> |Indictor|default sse build|avx512 build|avx512 build + Intrinsics|Intrinsics
> improvements|
> |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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