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] [13.6% done] [  9699/ 12470 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [18.2% done] [ 10268/  9711 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [22.7% done] [ 16786/  4315 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [26.1% done] [  8001/ 10455 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [  8167/  9943 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 15550/  3543 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [37.5% done] [ 10910/  7285 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [ 10008/  5924 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [  9797/  5766 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  6221/  7115 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  8090/  5428 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [ 14189/     0 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  8586/  3141 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  7810/  3230 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  5814/  3332 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7107/  2527 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1084, got signal=6
Threads: 2: [m_m] [63.3% done] [  7037/  1288 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1085, got signal=6
Threads: 1: [m__] [66.7% done] [  4246/  2482 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1083, got signal=6

fio: (groupid=0): err= 0: pid=1083
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=5.9%, 8=93.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=2.3%, 50=12.1%, 100=38.4%
     lat (msec): 250=45.3%, 500=1.0%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1084
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=7.1%, 8=92.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=2.2%, 50=9.4%, 100=45.3%
     lat (msec): 250=42.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1085
  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=0.0%, 20=1.3%, 50=8.2%, 100=43.6%
     lat (msec): 250=45.8%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3799/2128, merge=657/71, ticks=43032/31856, in_queue=74880, util=98.81%
0.31user 0.36system 0:20.83elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
393976inputs+220336outputs (0major+2447minor)pagefaults 0swaps