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] [14.3% done] [ 16095/  7070 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [19.0% done] [ 15216/  6634 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [22.7% done] [  8964/ 11539 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [27.3% done] [  9188/ 10050 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [30.4% done] [  3042/ 13540 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [  6781/  9431 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [39.1% done] [ 13154/  5108 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [41.7% done] [ 11559/  4132 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [ 12682/  2566 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  9932/  5121 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  8960/  3188 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [  9298/  2452 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [ 11844/  1338 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [ 11555/     0 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  7378/  2737 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  5466/  4222 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27942, got signal=6
Threads: 2: [m_m] [63.3% done] [  2649/  3990 kb/s] [eta 00m:11s]
Threads: 2: [m_m] [66.7% done] [  1138/  4799 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27941, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27943, got signal=6

fio: (groupid=0): err= 0: pid=27941
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=4.6%, 8=94.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.3%, 20=1.1%, 50=7.0%, 100=44.3%
     lat (msec): 250=46.2%, 500=0.8%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=27942
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.9%, 8=93.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.2%, 50=11.5%, 100=47.3%
     lat (msec): 250=40.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=27943
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.4%, 4=6.1%, 8=93.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.1%, 20=1.4%, 50=7.3%, 100=47.5%
     lat (msec): 250=41.4%, 500=1.2%, 750=0.3%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3422/2327, merge=358/277, ticks=41028/36716, in_queue=77744, util=99.26%
0.21user 0.30system 0:21.34elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
367096inputs+247184outputs (0major+2462minor)pagefaults 0swaps