fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmm] [9.7% done] [ 10957/  6764 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [12.9% done] [ 11043/  5621 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [15.6% done] [  9237/  6113 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [19.4% done] [  9961/  4620 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [22.6% done] [ 12690/  2135 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [26.7% done] [  5694/ 10323 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [29.0% done] [  9701/  4405 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [32.3% done] [  7273/  5542 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [33.3% done] [  5369/  7960 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [37.5% done] [  5556/  7557 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [40.6% done] [ 12841/   695 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [42.4% done] [  9379/  2269 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [45.5% done] [  8887/  2721 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [47.1% done] [  4173/  6170 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [50.0% done] [  3233/  7602 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [52.9% done] [  9094/  1366 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [54.3% done] [  5865/  3477 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [57.1% done] [  6349/  2818 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [58.3% done] [  6566/  2145 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [59.5% done] [  5230/  3827 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [62.2% done] [  6170/  3457 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [63.2% done] [  4559/  3038 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27316, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [mm_] [64.1% done] [  6255/  1358 kb/s] [eta 00m:14s]
fio: pid=27314, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27315, got signal=6

fio: (groupid=0): err= 0: pid=27314
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=12.4%, 8=87.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=2.5%, 50=37.2%, 100=23.8%
     lat (msec): 250=10.7%, 500=25.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=27315
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.4%, 4=15.1%, 8=84.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.2%, 20=6.6%, 50=38.1%, 100=19.4%
     lat (msec): 250=9.7%, 500=25.5%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=27316
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=13.1%, 8=86.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=2.1%, 50=42.3%, 100=21.2%
     lat (msec): 250=10.4%, 500=23.0%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3891/1927, merge=529/265, ticks=58164/32928, in_queue=91088, util=98.45%
0.70user 0.49system 0:26.33elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
407072inputs+207008outputs (0major+2474minor)pagefaults 0swaps