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] [33.3% done] [ 16928/ 53682 kb/s] [eta 00m:06s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=8133, got signal=6
Threads: 2: [m_m] [36.4% done] [ 15648/  3299 kb/s] [eta 00m:07s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [m_F] [41.7% done] [ 10176/ 24706 kb/s] [eta 00m:07s]
fio: pid=8134, got signal=6
Threads: 1: [m__] [42.9% done] [  1166/     0 kb/s] [eta 00m:08s]
Threads: 1: [m__] [43.8% done] [  1312/     0 kb/s] [eta 00m:09s]
Threads: 1: [m__] [44.4% done] [  1617/     0 kb/s] [eta 00m:10s]
Threads: 1: [m__] [52.9% done] [  1292/ 12816 kb/s] [eta 00m:08s]
Threads: 1: [m__] [52.6% done] [  1736/     0 kb/s] [eta 00m:09s]
Threads: 1: [F__] [100.0% done] [   662/ 21386 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [71.4% done] [  5623/     0 kb/s] [eta 00m:06s]
Threads: 1: [V__] [100.0% done] [ 47473/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=8132
  read : io=100MiB, bw=6,459KiB/s, runt= 16233msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  419, avg=48.43, stdev=84.56
    bw (KiB/s) : min=   19, max=48119, per=84.57%, avg=7859.96, stdev=12451.54
  write: io=57,080KiB, bw=3,922KiB/s, runt= 14900msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  286, avg= 2.65, stdev=18.47
    bw (KiB/s) : min=    0, max= 6475, per=21.74%, avg=3238.67, stdev=3237.50
  cpu          : usr=7.22%, sys=3.82%, ctx=5936
  IO depths    : 1=1.7%, 2=46.3%, 4=25.2%, 8=26.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=39.6%, 4=10.4%, 10=21.5%, 20=7.1%, 50=3.6%, 100=9.2%
     lat (msec): 250=4.4%, 500=4.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8133
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=5.5%, 2=77.7%, 4=3.6%, 8=13.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=68.7%, 4=14.4%, 10=1.5%, 20=0.4%, 50=5.7%, 100=6.5%
     lat (msec): 250=2.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8134
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=23.7%, 2=50.6%, 4=3.2%, 8=22.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=70.0%, 4=4.2%, 10=0.5%, 20=0.1%, 50=3.6%, 100=17.5%
     lat (msec): 250=3.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=144MiB, aggrb=9,294KiB/s, minb=0KiB/s, maxb=6,459KiB/s, mint=0msec, maxt=16233msec
  WRITE: io=212MiB, aggrb=14,899KiB/s, minb=0KiB/s, maxb=3,922KiB/s, mint=0msec, maxt=16233msec

Disk stats (read/write):
  cciss!c0d0: ios=1885/3609, merge=5441/50493, ticks=43768/1435932, in_queue=1479768, util=97.48%
3.88user 1.34system 0:16.57elapsed 31%CPU (0avgtext+0avgdata 0maxresident)k
378992inputs+433888outputs (0major+2457minor)pagefaults 0swaps