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] [ 16518/ 45194 kb/s] [eta 00m:06s]
Threads: 3: [FmF] [50.0% done] [  5091/ 66320 kb/s] [eta 00m:04s]
Threads: 3: [FmF] [50.0% done] [  2048/     0 kb/s] [eta 00m:05s]
Threads: 3: [FmF] [50.0% done] [  1495/     0 kb/s] [eta 00m:06s]
Threads: 3: [FFF] [100.0% done] [   333/ 26676 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9141, got signal=6
Threads: 2: [VV_] [72.2% done] [ 16010/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [87.5% done] [ 56986/     0 kb/s] [eta 00m:02s]
Threads: 2: [VV_] [100.0% done] [ 62077/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=9139
  read : io=100MiB, bw=6,840KiB/s, runt= 15326msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  154, avg=22.06, stdev=36.33
    bw (KiB/s) : min=    9, max=33617, per=110.76%, avg=16086.82, stdev=13830.34
  write: io=78,736KiB, bw=6,326KiB/s, runt= 12744msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   72, avg= 0.89, stdev= 4.24
    bw (KiB/s) : min=    0, max=59703, per=151.13%, avg=29017.00, stdev=29886.47
  cpu          : usr=9.27%, sys=4.72%, ctx=5617
  IO depths    : 1=1.9%, 2=53.8%, 4=28.5%, 8=15.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.1%, 4=13.6%, 10=20.2%, 20=4.9%, 50=4.0%, 100=4.6%
     lat (msec): 250=4.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9140
  read : io=100MiB, bw=6,784KiB/s, runt= 15455msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  375, avg=34.54, stdev=65.71
    bw (KiB/s) : min=   36, max=36913, per=67.95%, avg=9869.65, stdev=10844.93
  write: io=72,280KiB, bw=5,809KiB/s, runt= 12740msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  295, avg= 1.82, stdev=15.25
    bw (KiB/s) : min=    0, max=11585, per=32.95%, avg=6326.00, stdev=5865.74
  cpu          : usr=9.42%, sys=3.99%, ctx=7201
  IO depths    : 1=14.2%, 2=44.9%, 4=24.2%, 8=16.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.1%, 4=11.2%, 10=20.8%, 20=3.2%, 50=0.5%, 100=7.1%
     lat (msec): 250=5.1%, 500=1.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9141
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=35.9%, 2=48.1%, 4=2.4%, 8=13.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=84.5%, 4=0.4%, 10=0.0%, 20=0.2%, 50=1.5%, 100=11.8%
     lat (msec): 250=0.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=214MiB, aggrb=14,524KiB/s, minb=0KiB/s, maxb=6,840KiB/s, mint=0msec, maxt=15455msec
  WRITE: io=233MiB, aggrb=19,200KiB/s, minb=0KiB/s, maxb=6,326KiB/s, mint=0msec, maxt=15455msec

Disk stats (read/write):
  cciss!c0d0: ios=2483/3030, merge=12875/56659, ticks=168872/1361592, in_queue=1530464, util=97.53%
4.14user 2.00system 0:15.78elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
545536inputs+477944outputs (0major+2443minor)pagefaults 0swaps