総転送サイズ　256MB 
バッファ   転送時間     Address
    [KB]       [ms]     Read         Write
       2        133     0x22D59700   0x22D59B00
       4        133     0x22D58F00   0x22D59700
       8        116     0x22D57F00   0x22D58F00
      16        116     0x22D55F00   0x22D57F00
      32        133     0x22D51F00   0x22D55F00
      64        566     0x22D49F00   0x22D51F00
     128        550     0x22CEA6F0   0x22CFA6F0
     256        566     0x22CCA6F0   0x22CEA6F0
     512        566     0x225588D0   0x225988D0
    1024        583     0x224D88D0   0x225588D0
    2048       1750     0x2202BC70   0x2212BC70
    4096       1716     0x21E2BC70   0x2202BC70
    8192       1700     0x21A2BC70   0x21E2BC70
   16384       1700     0x2122BC70   0x21A2BC70
   32768       1783     0x2022BC70   0x2122BC70
   65536       1766     0x1E22BC70   0x2022BC70
  131072       1733     0x1A22BC70   0x1E22BC70
  262144       1700     0x1222BC70   0x1A22BC70
  524288       1683     0x0222BC70   0x1222BC70