view 2014/February/memo/MMAPvsDivideRead.txt @ 38:85f3125dd461

add result but imcomplete
author Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp>
date Fri, 07 Feb 2014 14:14:22 +0900
parents 4815efa8527b
children 4a4d6e475571
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[program]
    [実験環境]
        firefly で計測
        2*2.66 GHz, HHD 1TB, memory 16GB
        読み込んだ file size : 10740996168 Byte (10GB)

        読み込んでから Task が終了するまでの時間を測定

        divide read で一度に読み込む量 : 4*4096*1024 Byte


    % ./fileread -file ../regex_mas/10gb.txt -cpu 12 -dr

    bm_search one task size 16k
    [結果]
          |    -SPE_ANY--    |    ---IO_0---    |
    CPUNUM|    MMAP     DRead|    MMAP     DRead|
        1
        2                     68.971206  95.865063
        3
        4                     74.588351  104.667434
        5
        6                     98.992865   95.331606
        7
        8                     69.480705  114.974203
        9
       10
       11
       12                     82.505081  99.524560
       13
       14
       15
       16
       17
       18
       19
       20
       21
       22
       23
       24                      65.371087 99.040944