[ https://issues.apache.org/jira/browse/ARROW-8141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney reassigned ARROW-8141: ----------------------------------- Assignee: Frank Du > [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: 1.5h > 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| -- This message was sent by Atlassian Jira (v8.3.4#803005)