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=8390, got signal=6
Threads: 2: [_mm] [42.9% done] [ 14543/ 89474 kb/s] [eta 00m:04s]
Threads: 2: [_mF] [50.0% done] [  6329/ 41651 kb/s] [eta 00m:04s]
Threads: 2: [_mF] [55.6% done] [  2525/     0 kb/s] [eta 00m:04s]
Threads: 2: [_mF] [66.7% done] [  1453/ 16286 kb/s] [eta 00m:03s]
Threads: 2: [_mF] [63.6% done] [   667/     0 kb/s] [eta 00m:04s]
Threads: 2: [_FF] [100.0% done] [   292/  7172 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: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [82.4% done] [ 43893/     0 kb/s] [eta 00m:03s]
Threads: 2: [_VV] [100.0% done] [ 51523/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 53898/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=8390
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=89.2%, 4=6.8%, 8=3.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=79.5%, 4=13.7%, 10=1.5%, 20=0.2%, 50=0.7%, 100=1.7%
     lat (msec): 250=1.7%, 500=0.1%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8391
  read : io=100MiB, bw=6,434KiB/s, runt= 16297msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  343, avg=41.24, stdev=67.56
    bw (KiB/s) : min=   19, max=33411, per=72.17%, avg=9410.30, stdev=11677.63
  write: io=74,836KiB, bw=5,784KiB/s, runt= 13247msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  230, avg= 2.86, stdev=18.23
    bw (KiB/s) : min=    0, max=18355, per=43.50%, avg=8587.00, stdev=7812.25
  cpu          : usr=9.52%, sys=4.66%, ctx=6209
  IO depths    : 1=0.7%, 2=52.8%, 4=26.4%, 8=20.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=39.2%, 4=15.4%, 10=20.7%, 20=4.2%, 50=6.0%, 100=4.6%
     lat (msec): 250=8.2%, 500=1.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8392
  read : io=100MiB, bw=6,405KiB/s, runt= 16360msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  581, avg=24.03, stdev=52.92
    bw (KiB/s) : min=    5, max=36257, per=131.96%, avg=17206.67, stdev=12714.11
  write: io=81,856KiB, bw=6,325KiB/s, runt= 13251msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   67, avg= 0.43, stdev= 2.82
    bw (KiB/s) : min=    0, max=102195, per=258.84%, avg=51097.50, stdev=72262.78
  cpu          : usr=6.97%, sys=4.25%, ctx=6318
  IO depths    : 1=1.4%, 2=58.9%, 4=27.4%, 8=12.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=53.1%, 4=11.1%, 10=22.8%, 20=2.9%, 50=1.2%, 100=2.7%
     lat (msec): 250=5.6%, 500=0.1%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=203MiB, aggrb=13,039KiB/s, minb=0KiB/s, maxb=6,434KiB/s, mint=16297msec, maxt=16360msec
  WRITE: io=249MiB, aggrb=19,741KiB/s, minb=0KiB/s, maxb=6,325KiB/s, mint=16297msec, maxt=16360msec

Disk stats (read/write):
  cciss!c0d0: ios=4337/3476, merge=893/60430, ticks=36236/1451692, in_queue=1489120, util=98.78%
4.01user 1.92system 0:16.66elapsed 35%CPU (0avgtext+0avgdata 0maxresident)k
526520inputs+510952outputs (0major+2452minor)pagefaults 0swaps