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Posted to issues-all@impala.apache.org by "Joe McDonnell (Jira)" <ji...@apache.org> on 2020/06/08 17:33:00 UTC
[jira] [Commented] (IMPALA-9838) Switch to GCC 7.5.0
[ https://issues.apache.org/jira/browse/IMPALA-9838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17128482#comment-17128482 ]
Joe McDonnell commented on IMPALA-9838:
---------------------------------------
Attached performance comparisons between GCC 4.9.2 and GCC 7.5.0. There are no significant regressions, and it is possible there were some improvements overall.
> Switch to GCC 7.5.0
> -------------------
>
> Key: IMPALA-9838
> URL: https://issues.apache.org/jira/browse/IMPALA-9838
> Project: IMPALA
> Issue Type: Bug
> Components: Backend, Infrastructure
> Affects Versions: Impala 4.0
> Reporter: Joe McDonnell
> Priority: Major
> Attachments: kudu_tpch10_peformance_report.txt, targeted_perf_performance_report.txt, tpch30_disablecodegen_performance_report.txt, tpch30_performance_report.txt
>
>
> This tracks the final switchover from GCC 4.9.2 to GCC 7.5.0. The toolchain will be updated to a the version produced with GCC 7.5.0.
>
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