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  1. IMPALA
  2. IMPALA-3262

Investigate Codegen Performance

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    Details

    • Type: Task
    • Status: Resolved
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: Impala 2.2.4
    • Fix Version/s: None
    • Component/s: Perf Investigation
    • Labels:

      Description

      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.

        Attachments

        1. LLVM CallStack.csv
          237 kB
          Mostafa Mokhtar

          Issue Links

          duplicates

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-2651 codegen overhead can be high

          • Minor - Minor loss of function, or other problem where easy workaround is present.
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              • Assignee:
                mmokhtar Mostafa Mokhtar
                Reporter:
                alan@cloudera.com Alan Choi
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                Dates

                • Created:
                  Updated:
                  Resolved: