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: [mmF] [18.8% done] [ 13182/ 72137 kb/s] [eta 00m:13s]
Threads: 3: [mFF] [21.1% done] [  3429/ 12775 kb/s] [eta 00m:15s]
Threads: 3: [mFF] [45.5% done] [   907/ 36432 kb/s] [eta 00m:06s]
Threads: 3: [mFF] [66.7% done] [   244/ 30892 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [70.0% done] [  1696/     0 kb/s] [eta 00m:03s]
Threads: 3: [FFF] [100.0% done] [   288/  1822 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=15688, got signal=6
Threads: 2: [V_V] [70.6% done] [ 10479/     0 kb/s] [eta 00m:05s]
Threads: 2: [V_V] [86.7% done] [ 62220/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 58295/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=15687
  read : io=100MiB, bw=7,125KiB/s, runt= 14715msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  359, avg=37.85, stdev=65.56
    bw (KiB/s) : min=    0, max=29314, per=69.74%, avg=10388.50, stdev=9730.40
  write: io=68,000KiB, bw=5,883KiB/s, runt= 11835msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  184, avg= 2.11, stdev=17.34
    bw (KiB/s) : min=    0, max=59416, per=122.29%, avg=27150.25, stdev=28876.34
  cpu          : usr=9.84%, sys=3.86%, ctx=10794
  IO depths    : 1=42.3%, 2=15.5%, 4=24.4%, 8=17.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.3%, 4=7.5%, 10=20.4%, 20=5.7%, 50=2.1%, 100=6.1%
     lat (msec): 250=7.3%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15688
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=85.9%, 4=6.9%, 8=6.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=70.1%, 4=17.9%, 10=3.6%, 20=0.2%, 50=1.0%, 100=3.2%
     lat (msec): 250=3.3%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15689
  read : io=100MiB, bw=7,180KiB/s, runt= 14603msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  277, avg=15.42, stdev=36.49
    bw (KiB/s) : min=   21, max=38500, per=130.59%, avg=19450.88, stdev=17666.74
  write: io=95,456KiB, bw=8,259KiB/s, runt= 11835msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   65, avg= 0.48, stdev= 3.41
    bw (KiB/s) : min=    0, max=60153, per=150.13%, avg=33329.50, stdev=28892.01
  cpu          : usr=13.56%, sys=5.04%, ctx=9944
  IO depths    : 1=41.5%, 2=25.6%, 4=24.6%, 8=8.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=55.5%, 4=16.2%, 10=20.2%, 20=2.1%, 50=0.5%, 100=1.1%
     lat (msec): 250=4.1%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=209MiB, aggrb=14,895KiB/s, minb=0KiB/s, maxb=7,180KiB/s, mint=14603msec, maxt=14715msec
  WRITE: io=251MiB, aggrb=22,201KiB/s, minb=0KiB/s, maxb=8,259KiB/s, mint=14603msec, maxt=14715msec

Disk stats (read/write):
  cciss!c0d0: ios=4353/3014, merge=904/61092, ticks=36548/1346304, in_queue=1382984, util=97.62%
4.94user 2.00system 0:15.05elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
540696inputs+513224outputs (0major+2450minor)pagefaults 0swaps