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: [mFm] [42.9% done] [  3474/ 40801 kb/s] [eta 00m:04s]
Threads: 3: [mFF] [57.1% done] [  1923/ 40740 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [62.5% done] [   703/ 14260 kb/s] [eta 00m:03s]
Threads: 3: [FFF] [100.0% done] [     0/  9802 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]
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=10962, got signal=6
Threads: 2: [_VV] [68.4% done] [ 22428/     0 kb/s] [eta 00m:06s]
Threads: 2: [_VV] [100.0% done] [ 75668/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [ 75814/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=10962
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=84.2%, 4=3.0%, 8=12.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=71.0%, 4=12.7%, 10=2.0%, 20=0.3%, 50=0.6%, 100=6.3%
     lat (msec): 250=4.3%, 500=2.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10963
  read : io=100MiB, bw=6,785KiB/s, runt= 15453msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  375, avg=14.82, stdev=36.45
    bw (KiB/s) : min=   13, max=57001, per=133.00%, avg=20053.00, stdev=20778.36
  write: io=95,084KiB, bw=7,643KiB/s, runt= 12739msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  107, avg= 0.86, stdev= 5.38
    bw (KiB/s) : min=    0, max=101533, per=154.95%, avg=33368.75, stdev=47774.22
  cpu          : usr=9.84%, sys=5.85%, ctx=5852
  IO depths    : 1=10.1%, 2=52.9%, 4=27.3%, 8=9.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.6%, 4=18.3%, 10=20.0%, 20=3.1%, 50=1.5%, 100=2.9%
     lat (msec): 250=2.1%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10964
  read : io=100MiB, bw=6,916KiB/s, runt= 15151msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  382, avg=17.75, stdev=44.75
    bw (KiB/s) : min=    9, max=49897, per=113.64%, avg=17135.00, stdev=21093.06
  write: io=93,236KiB, bw=7,499KiB/s, runt= 12731msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  351, avg= 1.80, stdev=14.65
    bw (KiB/s) : min=    0, max=61791, per=131.79%, avg=28380.80, stdev=30735.53
  cpu          : usr=13.20%, sys=5.68%, ctx=5402
  IO depths    : 1=3.7%, 2=60.2%, 4=26.0%, 8=10.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.5%, 4=22.2%, 10=18.9%, 20=2.5%, 50=0.5%, 100=2.6%
     lat (msec): 250=3.0%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=222MiB, aggrb=15,078KiB/s, minb=0KiB/s, maxb=6,916KiB/s, mint=15151msec, maxt=15453msec
  WRITE: io=262MiB, aggrb=21,535KiB/s, minb=0KiB/s, maxb=7,643KiB/s, mint=15151msec, maxt=15453msec

Disk stats (read/write):
  cciss!c0d0: ios=2347/3550, merge=23083/63447, ticks=207136/1586472, in_queue=1793608, util=97.77%
4.98user 2.34system 0:15.73elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
488752inputs+535848outputs (0major+2453minor)pagefaults 0swaps