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From "Ferdinand Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10179) Optimization for SIMD instructions in Hive
Date Wed, 01 Apr 2015 08:13:52 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14390199#comment-14390199
] 

Ferdinand Xu commented on HIVE-10179:
-------------------------------------

To show the performance gain, I think one micro benchmark tool would be useful.

> Optimization for SIMD instructions in Hive
> ------------------------------------------
>
>                 Key: HIVE-10179
>                 URL: https://issues.apache.org/jira/browse/HIVE-10179
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Chengxiang Li
>            Assignee: Chengxiang Li
>              Labels: optimization
>
> [SIMD|http://en.wikipedia.org/wiki/SIMD] instuctions could be found in most of current
CPUs, such as Intel's SSE2, SSE3, SSE4.x, AVX and AVX2, and it would help Hive to outperform
if we can vectorize the mathematical manipulation part of Hive. This umbrella JIRA may contains
but not limited to the subtasks like:
> # Code schema adaption, current JVM is quite strictly on the code schema which could
be transformed into SIMD instructions during execution. 
> # New implementation of mathematical manipulation part of Hive which designed to be optimized
for SIMD instructions.



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