Gabor Kaszab has posted comments on this change. ( http://gerrit.cloudera.org:8080/15051 )
Change subject: IMPALA-9226: Improve string allocations of the ORC scanner ...................................................................... Patch Set 3: (2 comments) http://gerrit.cloudera.org:8080/#/c/15051/3//COMMIT_MSG Commit Message: http://gerrit.cloudera.org:8080/#/c/15051/3//COMMIT_MSG@24 PS3, Line 24: Some results: As discussed offline: These measurement were run with a debug build. Let' see the same with release builds as that is the one we would like to optimize. I also experienced a big difference in performance between debug and perf. http://gerrit.cloudera.org:8080/#/c/15051/3/be/src/exec/hdfs-orc-scanner.cc File be/src/exec/hdfs-orc-scanner.cc: http://gerrit.cloudera.org:8080/#/c/15051/3/be/src/exec/hdfs-orc-scanner.cc@625 PS3, Line 625: nit: this extra new line is not needed -- To view, visit http://gerrit.cloudera.org:8080/15051 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: If2d975946fb6f4104d8dc98895285b3a0c6bef7f Gerrit-Change-Number: 15051 Gerrit-PatchSet: 3 Gerrit-Owner: Norbert Luksa <norbert.lu...@cloudera.com> Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com> Gerrit-Reviewer: Daniel Becker <daniel.bec...@cloudera.com> Gerrit-Reviewer: Gabor Kaszab <gaborkas...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Norbert Luksa <norbert.lu...@cloudera.com> Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com> Gerrit-Comment-Date: Fri, 24 Jan 2020 14:50:25 +0000 Gerrit-HasComments: Yes
