[Impala-CR](cdh5-trunk) IMPALA-2361: Using AVX2 intrinsic to accelerate the sort operation Use AVX2 intrinsic to accelerate the sort operation (corresponding to the "order by" clause). Only single column is supported due to AVX2 restriction. Supported data types are

["Youwei Wang (Code Review)" <ge...@cloudera.org>]

Youwei Wang has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2774

Change subject: IMPALA-2361: Using AVX2 intrinsic to accelerate the sort operation     Use AVX2 intrinsic to accelerate the sort operation (corresponding to the "order by" clause).     Only single column is supported due to AVX2 restriction.     Supported data types are 
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IMPALA-2361: Using AVX2 intrinsic to accelerate the sort operation
    Use AVX2 intrinsic to accelerate the sort operation (corresponding to the "order by" clause).
    Only single column is supported due to AVX2 restriction.
    Supported data types are INT32 (and any integer type whose width is less than 32 bits), as well as FLOAT.
    Overall runtime improvement is about 27% without significant memory consumption increasing.

Change-Id: I0412fab9760a20bd29d7f8e971033063d1d63f2d
---
A be/src/util/avx-sort-lib-test.cc
A be/src/util/avx-sort-lib.cc
A be/src/util/avx-sort-lib.h
3 files changed, 2,827 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/74/2774/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I0412fab9760a20bd29d7f8e971033063d1d63f2d
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Youwei Wang <42...@qq.com>