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] [30.0% done] [ 12930/110242 kb/s] [eta 00m:07s]
Threads: 3: [mmF] [33.3% done] [  5319/     0 kb/s] [eta 00m:08s]
Threads: 3: [mmF] [33.3% done] [  3913/     0 kb/s] [eta 00m:10s]
Threads: 3: [mmF] [46.2% done] [  1861/ 18781 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [58.3% done] [  1698/ 26412 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25800, got signal=6
Threads: 2: [_FF] [100.0% done] [     0/ 17074 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] [86.7% done] [ 49692/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 64036/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=25800
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=78.5%, 4=2.5%, 8=18.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=66.0%, 4=12.5%, 10=0.8%, 20=0.2%, 50=1.8%, 100=7.3%
     lat (msec): 250=8.5%, 500=2.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25801
  read : io=100MiB, bw=7,115KiB/s, runt= 14737msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  371, avg=35.89, stdev=65.19
    bw (KiB/s) : min=    1, max=34136, per=67.64%, avg=10782.41, stdev=12374.19
  write: io=73,072KiB, bw=6,091KiB/s, runt= 12284msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  207, avg= 0.74, stdev= 8.93
    bw (KiB/s) : min=    0, max=16417, per=40.96%, avg=8208.50, stdev=11608.57
  cpu          : usr=6.22%, sys=4.10%, ctx=8503
  IO depths    : 1=30.5%, 2=27.2%, 4=24.5%, 8=17.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=53.2%, 4=8.0%, 10=20.0%, 20=3.9%, 50=1.1%, 100=5.6%
     lat (msec): 250=6.7%, 500=1.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25802
  read : io=100MiB, bw=6,999KiB/s, runt= 14981msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  178, avg=14.24, stdev=32.89
    bw (KiB/s) : min=   18, max=35954, per=116.67%, avg=18599.62, stdev=15646.92
  write: io=93,420KiB, bw=7,787KiB/s, runt= 12284msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  139, avg= 1.39, stdev= 8.03
    bw (KiB/s) : min=    0, max=74088, per=196.54%, avg=39388.50, stdev=34116.71
  cpu          : usr=12.31%, sys=4.91%, ctx=6482
  IO depths    : 1=13.7%, 2=52.4%, 4=25.3%, 8=8.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.3%, 4=22.4%, 10=20.3%, 20=0.8%, 50=0.3%, 100=1.8%
     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=228MiB, aggrb=15,942KiB/s, minb=0KiB/s, maxb=7,115KiB/s, mint=14737msec, maxt=14981msec
  WRITE: io=235MiB, aggrb=20,041KiB/s, minb=0KiB/s, maxb=7,787KiB/s, mint=14737msec, maxt=14981msec

Disk stats (read/write):
  cciss!c0d0: ios=1987/3443, merge=3943/56522, ticks=130292/1321736, in_queue=1457732, util=97.61%
4.16user 1.71system 0:15.28elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
542712inputs+480944outputs (0major+2443minor)pagefaults 0swaps