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stevencorona/gist:2491433

Created April 25, 2012 17:17
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gistfile1.txt
root@slave01:/tmp# hdparm -T /dev/sda
/dev/sda:
Timing cached reads: 28696 MB in 2.00 seconds = 14365.30 MB/sec
root@slave01:/tmp# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 1452 MB in 3.00 seconds = 483.41 MB/sec
root@slave01:/tmp# dd if=/dev/zero of=test bs=8k count=256k
262144+0 records in
262144+0 records out
2147483648 bytes (2.1 GB) copied, 4.97689 s, 431 MB/s
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