# ./iozone -e -I -a -s 50M -r 4k -r 512k -r 16M -i 0 -i 1 -i 2

    Iozone: Performance Test of File I/O
            Version $Revision: 3.414 $
            Compiled for 32 bit mode.
            Build: linux-arm 

    Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                 Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                 Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                 Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
                 Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
                 Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
                 Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
                 Vangel Bojaxhi, Ben England.

    Run began: Wed May 15 22:44:11 2013

    Include fsync in write timing
    O_DIRECT feature enabled
    Auto Mode
    File size set to 51200 KB
    Record Size 4 KB
    Record Size 512 KB
    Record Size 16384 KB
    Command line used: ./iozone -e -I -a -s 50M -r 4k -r 512k -r 16M -i 0 -i 1 -i 2
    Output is in Kbytes/sec
    Time Resolution = 0.000001 seconds.
    Processor cache size set to 1024 Kbytes.
    Processor cache line size set to 32 bytes.
    File stride size set to 17 * record size.
                                                        random  random    bkwd   record   stride                                   
          KB  reclen   write rewrite    read    reread    read   write    read  rewrite     read   fwrite frewrite   fread  freread
       51200       4    1653    1858     4566     4716    3996     755                                                          
       51200     512   20515   19534    21953    22031   21867    4722                                                          
       51200   16384   15841   21240    22311    22390   22384   21177                                                          

iozone test complete.