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Tim Armstrong resolved IMPALA-3262. ----------------------------------- Resolution: Duplicate I think this is more-or-less redundant with IMPALA-3262. The bulk of codegen time is spent in optimization and to improve that we need to evaluate individual passes for cost vs benefit > Investigate Codegen Performance > ------------------------------- > > Key: IMPALA-3262 > URL: https://issues.apache.org/jira/browse/IMPALA-3262 > Project: IMPALA > Issue Type: Task > Components: Perf Investigation > Affects Versions: Impala 2.2.4 > Reporter: Alan Choi > Assignee: Mostafa Mokhtar > Priority: Minor > Labels: codegen > Attachments: LLVM CallStack.csv > > > It has been observed that codegen for even relatively simple queries would > take ~600ms. This is quite a significant overhead for fast queries. > Investigate how to reduce the codegen time. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org For additional commands, e-mail: issues-all-h...@impala.apache.org