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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2021/07/19 02:54:23 UTC

[GitHub] [incubator-doris] HappenLee commented on issue #6238: [Proposal] Vectorization Execution Engine optimization for Doris

HappenLee commented on issue #6238:
URL: https://github.com/apache/incubator-doris/issues/6238#issuecomment-882192722


   > Nice work!!
   > 
   > According to this [paper](https://15721.courses.cs.cmu.edu/spring2019/papers/21-vectorization2/p2209-kersten.pdf), Since columnar memory order has fewer data cache misses, The vectorization execution outperforms CodeGen approach when accessing large hash_tables for aggreation or join.
   > 
   > Can we reproduce their findings?
   
   @ColdZoo Of course, if you are interested in joining, you are more than welcome to do so. Please contact me


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