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] [50.0% done] [ 14075/ 80883 kb/s] [eta 00m:03s]
Threads: 3: [mmF] [50.0% done] [  5999/ 25210 kb/s] [eta 00m:04s]
Threads: 3: [mmF] [50.0% done] [  2950/     0 kb/s] [eta 00m:05s]
Threads: 3: [FmF] [54.5% done] [  2633/  8947 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12426, got signal=6
Threads: 2: [F_F] [100.0% done] [   365/ 24433 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [82.4% done] [ 46287/     0 kb/s] [eta 00m:03s]
Threads: 2: [V_V] [100.0% done] [ 63707/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=12425
  read : io=100MiB, bw=6,534KiB/s, runt= 16046msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  311, avg=26.54, stdev=54.05
    bw (KiB/s) : min=   10, max=38428, per=86.34%, avg=12645.00, stdev=16148.08
  write: io=90,164KiB, bw=6,898KiB/s, runt= 13384msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  231, avg= 1.81, stdev=11.58
    bw (KiB/s) : min=    0, max=28225, per=73.93%, avg=13908.25, stdev=11929.84
  cpu          : usr=11.84%, sys=5.23%, ctx=5638
  IO depths    : 1=2.6%, 2=59.7%, 4=24.9%, 8=12.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.7%, 4=19.2%, 10=18.3%, 20=2.4%, 50=1.2%, 100=3.4%
     lat (msec): 250=6.0%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12426
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=74.3%, 4=5.4%, 8=19.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=60.4%, 4=13.5%, 10=1.6%, 20=0.2%, 50=7.2%, 100=7.8%
     lat (msec): 250=7.1%, 500=2.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12427
  read : io=100MiB, bw=6,549KiB/s, runt= 16010msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  166, avg=19.62, stdev=35.46
    bw (KiB/s) : min=    6, max=34355, per=139.03%, avg=20362.20, stdev=12284.17
  write: io=78,120KiB, bw=5,978KiB/s, runt= 13380msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   81, avg= 0.85, stdev= 3.76
    bw (KiB/s) : min=    0, max=61587, per=214.87%, avg=40424.33, stdev=35021.40
  cpu          : usr=10.04%, sys=4.37%, ctx=5744
  IO depths    : 1=2.1%, 2=57.9%, 4=26.7%, 8=13.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.5%, 4=16.5%, 10=22.1%, 20=2.6%, 50=1.0%, 100=5.0%
     lat (msec): 250=4.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=224MiB, aggrb=14,646KiB/s, minb=0KiB/s, maxb=6,549KiB/s, mint=16010msec, maxt=16046msec
  WRITE: io=240MiB, aggrb=18,813KiB/s, minb=0KiB/s, maxb=6,898KiB/s, mint=16010msec, maxt=16046msec

Disk stats (read/write):
  cciss!c0d0: ios=2121/3450, merge=5185/57885, ticks=161696/1398324, in_queue=1562692, util=97.83%
4.92user 2.00system 0:16.37elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k
531592inputs+491960outputs (0major+2447minor)pagefaults 0swaps