blktrace -n 64 -b 16384 -d /dev/sdb -o - | blkparse -i -
  8,16  14        0     0.000000000     0  m   N cfq3689 put_queue
  8,16  19        0     0.000840668     0  m   N cfq3691 put_queue
  8,16  15        0     0.002907432     0  m   N cfq3625 put_queue
  8,16  13        0     0.003521784     0  m   N cfq3709 put_queue
  8,16  17        0     0.003891896     0  m   N cfq3697 put_queue
^C  8,16  13        0     0.004013048     0  m   N cfq3624 put_queue
  8,16  19        0     0.004133484     0  m   N cfq3618 put_queue
  8,16  17        0     0.004451615     0  m   N cfq3720 put_queue
  8,16  13        0     0.004553737     0  m   N cfq3716 put_queue
  8,16  21        0     0.004786891     0  m   N cfq3712 put_queue
  8,16  13        0     0.005103572     0  m   N cfq3658 put_queue
  8,16   5        0     1.000024123     0  m   N cfq3677 put_queue
  8,16  12        0     1.000489071     0  m   N cfq3634 put_queue
  8,16   1        0     1.001100421     0  m   N cfq3727 put_queue
  8,16   5        0     1.001545793     0  m   N cfq3684 put_queue
CPU1 (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 Read depth:             0        	 Write depth:             0
 IO unplugs:             0        	 Timer unplugs:           0
CPU5 (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 Read depth:             0        	 Write depth:             0
 IO unplugs:             0        	 Timer unplugs:           0
CPU12 (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 Read depth:             0        	 Write depth:             0
 IO unplugs:             0        	 Timer unplugs:           0
CPU13 (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 Read depth:             0        	 Write depth:             0
 IO unplugs:             0        	 Timer unplugs:           0
CPU14 (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 Read depth:             0        	 Write depth:             0
 IO unplugs:             0        	 Timer unplugs:           0
CPU15 (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 Read depth:             0        	 Write depth:             0
 IO unplugs:             0        	 Timer unplugs:           0
CPU17 (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 Read depth:             0        	 Write depth:             0
 IO unplugs:             0        	 Timer unplugs:           0
CPU19 (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 Read depth:             0        	 Write depth:             0
 IO unplugs:             0        	 Timer unplugs:           0
CPU21 (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 Read depth:             0        	 Write depth:             0
 IO unplugs:             0        	 Timer unplugs:           0

Total (8,16):
 Reads Queued:           0,        0KiB	 Writes Queued:           0,        0KiB
 Read Dispatches:        0,        0KiB	 Write Dispatches:        0,        0KiB
 Reads Requeued:         0		 Writes Requeued:         0
 Reads Completed:        0,        0KiB	 Writes Completed:        0,        0KiB
 Read Merges:            0,        0KiB	 Write Merges:            0,        0KiB
 IO unplugs:             0        	 Timer unplugs:           0

Throughput (R/W): 0KiB/s / 0KiB/s
Events (8,16): 15 entries
Skips: 0 forward (0 -   0.0%)
