Jim Apple has uploaded a new patch set (#2). Change subject: IMPALA-4300: Speed up BloomFilter::Or with SIMD ......................................................................
IMPALA-4300: Speed up BloomFilter::Or with SIMD Manually vectorizing speeds up BloomFilter::Or by up to 184x. The existing loop should auto-vectorize with our GCC setting of -O3, but it does not for reasons that remain mysterious. Change-Id: I840799d9cfb81285c796e2abfe2029bb869b0f67 --- 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, 176 insertions(+), 75 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/13/4813/2 -- To view, visit http://gerrit.cloudera.org:8080/4813 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: newpatchset Gerrit-Change-Id: I840799d9cfb81285c796e2abfe2029bb869b0f67 Gerrit-PatchSet: 2 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Jim Apple <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]>
