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] [23.1% done] [ 13153/ 35514 kb/s] [eta 00m:10s]
Threads: 3: [mmF] [40.0% done] [  3709/ 43355 kb/s] [eta 00m:06s]
Threads: 3: [mmF] [41.7% done] [  1414/     0 kb/s] [eta 00m:07s]
Threads: 3: [mmF] [40.0% done] [   439/     0 kb/s] [eta 00m:09s]
Threads: 3: [mmF] [41.2% done] [   557/     0 kb/s] [eta 00m:10s]
Threads: 3: [mmF] [42.1% done] [  1114/  3563 kb/s] [eta 00m:11s]
Threads: 3: [mmF] [45.0% done] [   821/ 21598 kb/s] [eta 00m:11s]
Threads: 3: [mmF] [45.5% done] [   950/  5046 kb/s] [eta 00m:12s]
Threads: 3: [FmV] [57.9% done] [ 10528/ 29435 kb/s] [eta 00m:08s]
Threads: 3: [FmV] [60.0% done] [ 19507/    52 kb/s] [eta 00m:08s]
Threads: 3: [FmV] [68.4% done] [ 23725/  8819 kb/s] [eta 00m:06s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9664, got signal=6
Threads: 2: [F_V] [100.0% done] [ 15001/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_V] [100.0% done] [  2554/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_V] [100.0% done] [ 17941/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [73.9% done] [ 27707/     0 kb/s] [eta 00m:06s]
Threads: 1: [V__] [90.0% done] [ 20280/     0 kb/s] [eta 00m:02s]
Threads: 1: [V__] [100.0% done] [ 23365/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 20622/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=9663
  read : io=100MiB, bw=5,085KiB/s, runt= 20620msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 2501, avg=61.87, stdev=199.03
    bw (KiB/s) : min=    2, max=24218, per=65.29%, avg=7554.44, stdev=9267.77
  write: io=83,972KiB, bw=5,346KiB/s, runt= 16083msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1142, avg= 5.02, stdev=49.36
    bw (KiB/s) : min=    0, max=57147, per=96.76%, avg=15795.29, stdev=24015.66
  cpu          : usr=6.81%, sys=4.60%, ctx=9703
  IO depths    : 1=26.5%, 2=22.1%, 4=30.9%, 8=20.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.1%, 4=3.3%, 10=10.0%, 20=12.7%, 50=23.2%, 100=3.3%
     lat (msec): 250=3.3%, 500=0.5%, 750=0.3%, 1000=0.6%, >=2000=0.4%
fio: (groupid=0): err= 0: pid=9664
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=58.5%, 2=15.2%, 4=7.9%, 8=18.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=72.3%, 4=0.7%, 10=1.1%, 20=3.9%, 50=4.3%, 100=2.0%
     lat (msec): 250=10.4%, 500=1.4%, 750=0.8%, 1000=1.0%, >=2000=1.6%
fio: (groupid=0): err= 0: pid=9671
  read : io=100MiB, bw=6,234KiB/s, runt= 16820msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  603, avg=30.70, stdev=66.82
    bw (KiB/s) : min=    7, max=31937, per=105.19%, avg=12171.94, stdev=11430.19
  write: io=98,288KiB, bw=9,371KiB/s, runt= 10740msec
    slat (msec): min=    0, max=    4, avg= 0.01, stdev= 0.15
    clat (msec): min=    0, max=  213, avg= 0.96, stdev= 9.89
    bw (KiB/s) : min=    0, max=57204, per=184.15%, avg=30060.50, stdev=27425.08
  cpu          : usr=11.01%, sys=5.04%, ctx=11949
  IO depths    : 1=51.6%, 2=11.4%, 4=25.7%, 8=11.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=55.4%, 4=4.4%, 10=10.5%, 20=12.5%, 50=11.4%, 100=0.9%
     lat (msec): 250=3.4%, 500=1.2%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=228MiB, aggrb=11,571KiB/s, minb=0KiB/s, maxb=6,234KiB/s, mint=16820msec, maxt=20620msec
  WRITE: io=250MiB, aggrb=16,324KiB/s, minb=0KiB/s, maxb=9,371KiB/s, mint=16820msec, maxt=20620msec

Disk stats (read/write):
  cciss!c0d0: ios=4309/3686, merge=38/60338, ticks=71324/1654092, in_queue=1725408, util=98.06%
4.51user 2.30system 0:20.97elapsed 32%CPU (0avgtext+0avgdata 0maxresident)k
532688inputs+512824outputs (0major+2467minor)pagefaults 0swaps