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] [11.1% done] [ 16180/  4079 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [13.8% done] [ 18157/  1683 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [18.5% done] [ 19036/   658 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [23.1% done] [  9098/  7013 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [25.9% done] [ 11942/  3782 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [27.6% done] [ 10307/  4010 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [31.0% done] [ 12300/  3295 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [34.5% done] [ 12690/  2149 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [37.9% done] [ 11336/  2774 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [41.4% done] [ 10459/  4482 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [44.8% done] [ 13935/   638 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [48.3% done] [  8692/  3624 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [51.7% done] [ 11942/  1275 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [53.3% done] [  5967/  4262 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [54.8% done] [  6875/  1759 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [58.1% done] [  9217/  1692 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [59.4% done] [  2696/  4209 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=17534, got signal=6
Threads: 2: [m_m] [60.6% done] [  4575/  2741 kb/s] [eta 00m:13s]
Threads: 2: [m_m] [63.6% done] [  5771/  1500 kb/s] [eta 00m:12s]
Threads: 2: [m_m] [64.7% done] [  2351/  4348 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=17533, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [__m] [67.6% done] [  5072/   671 kb/s] [eta 00m:11s]
fio: pid=17535, got signal=6

fio: (groupid=0): err= 0: pid=17533
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=6.6%, 8=92.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.3%, 20=3.3%, 50=6.5%, 100=43.4%
     lat (msec): 250=44.6%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17534
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.5%, 8=94.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.8%, 50=9.0%, 100=52.7%
     lat (msec): 250=35.7%, 500=1.2%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17535
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.0%, 8=94.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.9%, 50=8.7%, 100=44.6%
     lat (msec): 250=42.1%, 500=2.8%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=4627/1409, merge=577/223, ticks=53100/28856, in_queue=81840, util=98.27%
0.30user 0.34system 0:23.89elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
485864inputs+128280outputs (0major+2458minor)pagefaults 0swaps