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Posted to issues@iceberg.apache.org by GitBox <gi...@apache.org> on 2022/06/17 20:32:29 UTC

[GitHub] [iceberg] kbendick commented on issue #4217: Slow performance on TPC-DS tests

kbendick commented on issue #4217:
URL: https://github.com/apache/iceberg/issues/4217#issuecomment-1159209016

   Along with data vectorizations, I would encourage people to use the following system properties which affect Arrows performance that are used within our tests (particularly if benchmarking as Arrow does duplicate some checks that we already do, which can have a big impact on hot code paths and the eventually compiled code):
   
   https://github.com/apache/iceberg/blob/c9442f1c0f0524b7ca5ac3ccbb927cc80b764239/spark/v3.2/build.gradle#L104-L110


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