Tianyi Wang has uploaded a new patch set (#4). ( http://gerrit.cloudera.org:8080/8417 )
Change subject: IMPALA-2281: Replace FNV with FastHash in exchange nodes ...................................................................... IMPALA-2281: Replace FNV with FastHash in exchange nodes FNV is not a good enough hash function. This patch introduces FastHash into the codebase and uses it in exchange nodes. Testing: Two test cases involving arbitrary ordering are changed. Single node performance benchmark shows no performance difference. Change-Id: I778317d982dcdb94173a369a65b39f32b4f7ded2 --- M be/src/benchmarks/hash-benchmark.cc M be/src/codegen/gen_ir_descriptions.py M be/src/codegen/llvm-codegen.cc M be/src/runtime/data-stream-sender.cc M be/src/runtime/data-stream-sender.h M be/src/runtime/data-stream-test.cc M be/src/runtime/raw-value-test.cc M be/src/runtime/raw-value.cc M be/src/runtime/raw-value.h M be/src/util/hash-util-ir.cc M be/src/util/hash-util.h M testdata/workloads/functional-query/queries/QueryTest/nested-types-runtime.test M testdata/workloads/tpcds/queries/tpcds-q77a.test 13 files changed, 201 insertions(+), 101 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/17/8417/4 -- To view, visit http://gerrit.cloudera.org:8080/8417 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I778317d982dcdb94173a369a65b39f32b4f7ded2 Gerrit-Change-Number: 8417 Gerrit-PatchSet: 4 Gerrit-Owner: Tianyi Wang <tw...@cloudera.com> Gerrit-Reviewer: Tianyi Wang <tw...@cloudera.com> Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
