Benchmark:
 - Create large file
 - Read sequentially from the file with various block sizes
 - Seek back to the beginning of the file whenever we hit the end

PSP:
  I/O Benchmark
  Creating 1048576 byte file
  Reading sequentially for 3 seconds:
  Block size       8:   15441 reads =      41176 bytes/sec
  Block size      16:   15171 reads =      80912 bytes/sec
  Block size      32:   14600 reads =     155733 bytes/sec
  Block size      64:   13674 reads =     291712 bytes/sec
  Block size     128:   12135 reads =     517760 bytes/sec
  Block size     256:    9936 reads =     847872 bytes/sec
  Block size     512:    4147 reads =     707754 bytes/sec
  Block size    1024:    2481 reads =     846848 bytes/sec
  Block size    2048:    1748 reads =    1193301 bytes/sec
  Block size    4096:    1611 reads =    2199552 bytes/sec
  Block size    8192:    1420 reads =    3877546 bytes/sec
  Block size   16384:    1155 reads =    6307840 bytes/sec
  Block size   32768:     831 reads =    9076736 bytes/sec
  Block size   65536:     531 reads =   11599872 bytes/sec
  Block size  131072:     312 reads =   13631488 bytes/sec
  Block size  262144:     171 reads =   14942208 bytes/sec
  Block size  524288:      89 reads =   15553877 bytes/sec
  Block size 1048576:      45 reads =   15728640 bytes/sec