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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=18221, got signal=6
Threads: 2: [m_m] [14.3% done] [ 17701/ 68753 kb/s] [eta 00m:18s]
Threads: 2: [m_m] [30.8% done] [ 15424/ 24706 kb/s] [eta 00m:09s]
Threads: 2: [m_m] [38.5% done] [ 14887/ 27211 kb/s] [eta 00m:08s]
Threads: 2: [m_m] [60.0% done] [  9573/ 28525 kb/s] [eta 00m:04s]
Threads: 2: [F_F] [100.0% done] [  1923/ 27289 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [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=18222, got signal=6
Threads: 1: [V__] [88.2% done] [ 32796/     0 kb/s] [eta 00m:02s]
fio: (groupid=0): err= 0: pid=18220
  read : io=100MiB, bw=6,665KiB/s, runt= 15684msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  379, avg=32.40, stdev=48.74
    bw (KiB/s) : min=   15, max=43216, per=118.18%, avg=11214.81, stdev=12829.58
  write: io=55,284KiB, bw=3,959KiB/s, runt= 14299msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  231, avg= 2.27, stdev=16.18
    bw (KiB/s) : min=    0, max=23581, per=59.71%, avg=9268.00, stdev=12573.98
  cpu          : usr=7.80%, sys=3.93%, ctx=6117
  IO depths    : 1=0.4%, 2=45.0%, 4=28.7%, 8=25.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=36.2%, 4=10.2%, 10=22.2%, 20=8.9%, 50=8.2%, 100=8.9%
     lat (msec): 250=4.4%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=18221
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=92.8%, 4=2.4%, 8=4.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=83.2%, 4=10.0%, 10=1.4%, 20=0.0%, 50=0.2%, 100=0.7%
     lat (msec): 250=3.9%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=18222
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=70.6%, 4=6.8%, 8=22.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=60.5%, 4=10.9%, 10=1.3%, 20=0.5%, 50=3.6%, 100=12.3%
     lat (msec): 250=8.9%, 500=1.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=142MiB, aggrb=9,490KiB/s, minb=0KiB/s, maxb=6,665KiB/s, mint=0msec, maxt=15684msec
  WRITE: io=212MiB, aggrb=15,522KiB/s, minb=0KiB/s, maxb=3,959KiB/s, mint=0msec, maxt=15684msec

Disk stats (read/write):
  cciss!c0d0: ios=3371/3122, merge=751/51006, ticks=33292/1327180, in_queue=1360476, util=97.43%
3.54user 1.63system 0:16.01elapsed 32%CPU (0avgtext+0avgdata 0maxresident)k
402296inputs+433616outputs (0major+2462minor)pagefaults 0swaps