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] [17.6% done] [ 14032/ 36876 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=30464, got signal=6
Threads: 2: [mm_] [25.0% done] [ 15407/ 14858 kb/s] [eta 00m:12s]
Threads: 2: [mm_] [45.5% done] [  9135/ 23127 kb/s] [eta 00m:06s]
Threads: 2: [mF_] [54.5% done] [  4905/ 14944 kb/s] [eta 00m:05s]
Threads: 2: [mF_] [58.3% done] [  1838/  2883 kb/s] [eta 00m:05s]
Threads: 2: [FF_] [100.0% done] [   492/ 17457 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [68.2% done] [ 17274/     0 kb/s] [eta 00m:07s]
Threads: 2: [VV_] [88.9% done] [ 54358/     0 kb/s] [eta 00m:02s]
Threads: 1: [EV_] [100.0% done] [ 50612/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=30462
  read : io=100MiB, bw=6,202KiB/s, runt= 16903msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  460, avg=37.14, stdev=56.45
    bw (KiB/s) : min=   15, max=30192, per=83.85%, avg=10434.84, stdev=9708.54
  write: io=57,444KiB, bw=4,027KiB/s, runt= 14607msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  227, avg= 2.21, stdev=16.82
    bw (KiB/s) : min=    0, max=20813, per=65.29%, avg=10601.67, stdev=10411.99
  cpu          : usr=6.44%, sys=4.54%, ctx=7407
  IO depths    : 1=9.6%, 2=39.5%, 4=28.8%, 8=22.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.0%, 4=7.6%, 10=21.5%, 20=8.7%, 50=1.9%, 100=8.7%
     lat (msec): 250=8.0%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=30463
  read : io=100MiB, bw=6,017KiB/s, runt= 17416msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  444, avg=32.12, stdev=48.75
    bw (KiB/s) : min=    3, max=52109, per=99.48%, avg=12380.62, stdev=14959.13
  write: io=78,744KiB, bw=5,520KiB/s, runt= 14607msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  215, avg= 1.47, stdev=11.38
    bw (KiB/s) : min=    0, max=61972, per=170.54%, avg=27694.33, stdev=31506.15
  cpu          : usr=8.34%, sys=4.18%, ctx=8655
  IO depths    : 1=27.0%, 2=20.5%, 4=28.1%, 8=24.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=37.1%, 4=11.3%, 10=18.7%, 20=9.4%, 50=9.6%, 100=8.2%
     lat (msec): 250=5.2%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=30464
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=14.6%, 2=72.4%, 4=5.2%, 8=7.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=80.6%, 4=9.4%, 10=0.8%, 20=0.1%, 50=1.1%, 100=4.3%
     lat (msec): 250=3.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=207MiB, aggrb=12,445KiB/s, minb=0KiB/s, maxb=6,202KiB/s, mint=0msec, maxt=17416msec
  WRITE: io=226MiB, aggrb=16,239KiB/s, minb=0KiB/s, maxb=5,520KiB/s, mint=0msec, maxt=17416msec

Disk stats (read/write):
  cciss!c0d0: ios=4926/3206, merge=1013/54594, ticks=39148/1483700, in_queue=1524180, util=89.17%
3.98user 1.91system 0:19.49elapsed 30%CPU (0avgtext+0avgdata 0maxresident)k
571336inputs+463344outputs (0major+2452minor)pagefaults 0swaps