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: [FmF] [37.5% done] [  2096/ 10215 kb/s] [eta 00m:05s]
Threads: 3: [FmF] [50.0% done] [  1635/ 17567 kb/s] [eta 00m:04s]
Threads: 3: [FmF] [71.4% done] [   577/ 25629 kb/s] [eta 00m:02s]
Threads: 3: [FFF] [100.0% done] [   911/     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: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2644, got signal=6
fio: pid=2646, got signal=6
Threads: 1: [_V_] [100.0% done] [ 50224/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=2644
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=7.5%, 2=75.9%, 4=12.8%, 8=3.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=74.6%, 4=16.1%, 10=4.1%, 20=1.2%, 50=1.8%, 100=0.3%
     lat (msec): 250=1.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2645
  read : io=100MiB, bw=8,940KiB/s, runt= 11687msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  395, avg=21.70, stdev=50.98
    bw (KiB/s) : min=    5, max=60197, per=149.09%, avg=13567.08, stdev=21617.68
  write: io=78,600KiB, bw=7,879KiB/s, runt= 10215msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.05
    clat (msec): min=    0, max=  338, avg= 2.68, stdev=17.95
    bw (KiB/s) : min=    0, max=59842, per=72.46%, avg=20451.00, stdev=26950.34
  cpu          : usr=14.07%, sys=7.05%, ctx=5222
  IO depths    : 1=5.7%, 2=51.7%, 4=28.4%, 8=14.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.8%, 4=15.1%, 10=26.0%, 20=5.9%, 50=2.7%, 100=3.7%
     lat (msec): 250=2.5%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2646
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=30.9%, 2=55.4%, 4=12.5%, 8=1.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=88.2%, 4=3.4%, 10=4.6%, 20=3.0%, 50=0.3%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=101MiB, aggrb=9,100KiB/s, minb=0KiB/s, maxb=8,940KiB/s, mint=0msec, maxt=11687msec
  WRITE: io=275MiB, aggrb=28,224KiB/s, minb=0KiB/s, maxb=7,879KiB/s, mint=0msec, maxt=11687msec

Disk stats (read/write):
  cciss!c0d0: ios=2194/3108, merge=553/67144, ticks=10496/1245644, in_queue=1257408, util=90.60%
4.43user 2.05system 0:11.99elapsed 54%CPU (0avgtext+0avgdata 0maxresident)k
261432inputs+563152outputs (0major+2463minor)pagefaults 0swaps