/dev/sda:
 Timing cached reads:   2106 MB in  2.00 seconds = 1053.32 MB/sec
 Timing buffered disk reads: 108 MB in  3.04 seconds =  35.50 MB/sec
/dev/sdb:
 Timing cached reads:   3416 MB in  2.00 seconds = 1707.99 MB/sec
 Timing buffered disk reads:  328 MB in  3.01 seconds = 109.10 MB/sec