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] [13.0% done] [ 13825/  6719 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [16.7% done] [ 16331/  2948 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [20.0% done] [ 15106/  2948 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [24.0% done] [ 17836/  2342 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [26.9% done] [ 15017/  2940 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [30.8% done] [  9941/  7382 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [34.6% done] [ 12007/  5503 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [38.5% done] [ 15456/   898 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [42.3% done] [ 12536/  2717 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [ 11124/  4022 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.1% done] [  9615/  4555 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.9% done] [  5206/  6296 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  8375/  3343 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [57.1% done] [  5853/  5556 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  3713/  6434 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  8590/  1081 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [61.3% done] [  8277/     0 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9028, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_m] [62.5% done] [  7000/  1033 kb/s] [eta 00m:12s]
fio: pid=9029, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [m__] [67.7% done] [  3803/  2953 kb/s] [eta 00m:10s]
fio: pid=9027, got signal=6

fio: (groupid=0): err= 0: pid=9027
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.6%, 8=94.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.0%, 50=15.0%, 100=35.3%
     lat (msec): 250=47.4%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9028
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.1%, 8=93.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.4%, 20=2.2%, 50=7.0%, 100=55.7%
     lat (msec): 250=34.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9029
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.3%, 8=94.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=1.7%, 50=8.3%, 100=49.8%
     lat (msec): 250=39.4%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=4216/1864, merge=578/85, ticks=50504/25880, in_queue=76376, util=97.57%
0.17user 0.56system 0:22.01elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
442088inputs+172080outputs (0major+2450minor)pagefaults 0swaps