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] [18.8% done] [  6780/ 54224 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [36.4% done] [  6060/ 61525 kb/s] [eta 00m:07s]
Threads: 3: [mmF] [55.6% done] [  3046/ 60541 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=533, got signal=6
Threads: 2: [m_F] [66.7% done] [  1907/ 20016 kb/s] [eta 00m:03s]
Threads: 2: [m_F] [63.6% done] [  1411/     0 kb/s] [eta 00m:04s]
Threads: 2: [m_F] [66.7% done] [  1041/     0 kb/s] [eta 00m:04s]
Threads: 2: [m_F] [69.2% done] [   667/     0 kb/s] [eta 00m:04s]
Threads: 2: [m_F] [66.7% done] [  1452/     0 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=532, got signal=6
Threads: 1: [__F] [100.0% done] [  1749/     0 kb/s] [eta 00m:00s]
Threads: 1: [__F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [__F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [87.5% done] [ 31949/     0 kb/s] [eta 00m:02s]
fio: (groupid=0): err= 0: pid=532
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=72.2%, 4=6.4%, 8=20.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=57.2%, 4=15.6%, 10=0.9%, 20=2.1%, 50=2.7%, 100=1.8%
     lat (msec): 250=11.8%, 500=7.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=533
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=67.4%, 2=18.1%, 4=3.7%, 8=10.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=81.5%, 4=2.9%, 10=0.9%, 20=2.0%, 50=2.7%, 100=2.4%
     lat (msec): 250=5.8%, 500=1.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=534
  read : io=100MiB, bw=6,951KiB/s, runt= 15085msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  322, avg=16.72, stdev=47.38
    bw (KiB/s) : min=    5, max=69957, per=184.58%, avg=17341.44, stdev=27205.69
  write: io=88,092KiB, bw=6,635KiB/s, runt= 13595msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  255, avg= 1.69, stdev=14.47
    bw (KiB/s) : min=    0, max=60686, per=121.97%, avg=23571.00, stdev=32531.18
  cpu          : usr=10.10%, sys=4.88%, ctx=8031
  IO depths    : 1=21.3%, 2=43.1%, 4=25.7%, 8=10.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.0%, 4=17.5%, 10=24.8%, 20=1.8%, 50=0.3%, 100=0.9%
     lat (msec): 250=3.1%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=135MiB, aggrb=9,395KiB/s, minb=0KiB/s, maxb=6,951KiB/s, mint=15085msec, maxt=15085msec
  WRITE: io=251MiB, aggrb=19,326KiB/s, minb=0KiB/s, maxb=6,635KiB/s, mint=15085msec, maxt=15085msec

Disk stats (read/write):
  cciss!c0d0: ios=2861/3640, merge=690/60475, ticks=31464/1651084, in_queue=1686424, util=95.43%
4.30user 1.42system 0:15.43elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k
336432inputs+513352outputs (0major+2469minor)pagefaults 0swaps