Michael Smith has posted comments on this change. ( http://gerrit.cloudera.org:8080/20692 )
Change subject: IMPALA-11542: Implement pre-allocation in LLVM memory manager ...................................................................... Patch Set 9: > Patch Set 4: > > Running an AB test to see if this impacts x86 performance: > https://jenkins.impala.io/job/perf-AB-test-ub2004/20/ This actually showed a slight improvement in performance: +----------+-----------------------+---------+------------+------------+----------------+ | Workload | File Format | Avg (s) | Delta(Avg) | GeoMean(s) | Delta(GeoMean) | +----------+-----------------------+---------+------------+------------+----------------+ | TPCH(42) | parquet / none / none | 3.13 | -2.51% | 2.36 | -2.50% | +----------+-----------------------+---------+------------+------------+----------------+ -- To view, visit http://gerrit.cloudera.org:8080/20692 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I9f224edcdbdcb05fce663c18b4a5f03c8e985675 Gerrit-Change-Number: 20692 Gerrit-PatchSet: 9 Gerrit-Owner: Michael Smith <[email protected]> Gerrit-Reviewer: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Daniel Becker <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Joe McDonnell <[email protected]> Gerrit-Reviewer: Michael Smith <[email protected]> Gerrit-Reviewer: Yida Wu <[email protected]> Gerrit-Comment-Date: Fri, 10 Nov 2023 18:02:53 +0000 Gerrit-HasComments: No
