Impala Public Jenkins has submitted this change and it was merged. ( http://gerrit.cloudera.org:8080/21571 )
Change subject: IMPALA-13209: Optimize ConvertRowBatchTime in ExchangeNode ...................................................................... IMPALA-13209: Optimize ConvertRowBatchTime in ExchangeNode The patch optimizes the most common case when the src and dst RowBatches have the same number of tuples per row. ConvertRowBatchTime is decreased from >600ms to <100ms in a query with busy exchange node: set mt_dop=8; select straight_join count(*) from tpcds_parquet.store_sales s1 join /*+broadcast*/ tpcds_parquet.store_sales16 s2 on s1.ss_customer_sk = s2.ss_customer_sk; TPCDS-20 showed minor improvement (0.77%). The affect is likely to be larger if more nodes are involved. Testing: - passed core tests Change-Id: Iab94315364e8886da1ae01cf6af623812a2da9cb Reviewed-on: http://gerrit.cloudera.org:8080/21571 Reviewed-by: Impala Public Jenkins <[email protected]> Tested-by: Impala Public Jenkins <[email protected]> --- M be/src/exec/exchange-node.cc M be/src/runtime/row-batch.cc M be/src/runtime/row-batch.h 3 files changed, 48 insertions(+), 16 deletions(-) Approvals: Impala Public Jenkins: Looks good to me, approved; Verified -- To view, visit http://gerrit.cloudera.org:8080/21571 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: merged Gerrit-Change-Id: Iab94315364e8886da1ae01cf6af623812a2da9cb Gerrit-Change-Number: 21571 Gerrit-PatchSet: 7 Gerrit-Owner: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Michael Smith <[email protected]> Gerrit-Reviewer: Yida Wu <[email protected]> Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>
