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From "Internal Jenkins (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-4300: Speed up BloomFilter::Or with SIMD
Date Mon, 24 Oct 2016 18:07:26 GMT
Internal Jenkins has submitted this change and it was merged.

Change subject: IMPALA-4300: Speed up BloomFilter::Or with SIMD
......................................................................


IMPALA-4300: Speed up BloomFilter::Or with SIMD

The previous code was not written in a way that GCC could
auto-vectorize it. Manually vectorizing speeds up BloomFilter::Or by
up to 184x.

Change-Id: I840799d9cfb81285c796e2abfe2029bb869b0f67
Reviewed-on: http://gerrit.cloudera.org:8080/4813
Reviewed-by: Jim Apple <jbapple@cloudera.com>
Tested-by: Internal Jenkins
---
M be/src/benchmarks/bloom-filter-benchmark.cc
M be/src/testutil/mem-util.h
M be/src/util/bloom-filter.cc
M be/src/util/cpu-info.cc
M be/src/util/cpu-info.h
5 files changed, 178 insertions(+), 75 deletions(-)

Approvals:
  Jim Apple: Looks good to me, approved
  Internal Jenkins: Verified



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Gerrit-MessageType: merged
Gerrit-Change-Id: I840799d9cfb81285c796e2abfe2029bb869b0f67
Gerrit-PatchSet: 5
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Jim Apple <jbapple@cloudera.com>
Gerrit-Reviewer: Internal Jenkins
Gerrit-Reviewer: Jim Apple <jbapple@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstrong@cloudera.com>

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