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] [11.1% done] [ 11028/ 11089 kb/s] [eta 00m:24s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [Fmm] [16.0% done] [  6703/ 56953 kb/s] [eta 00m:21s]
fio: pid=22144, got signal=6
Threads: 2: [_mm] [23.8% done] [  4706/ 26174 kb/s] [eta 00m:16s]
Threads: 2: [_mm] [35.3% done] [  5092/ 33003 kb/s] [eta 00m:11s]
Threads: 2: [_Fm] [58.3% done] [  1158/ 52971 kb/s] [eta 00m:05s]
Threads: 2: [_FF] [100.0% done] [   345/ 16518 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] [73.7% done] [ 22406/     0 kb/s] [eta 00m:05s]
Threads: 2: [_VV] [93.8% done] [ 53849/     0 kb/s] [eta 00m:01s]
Threads: 1: [_V_] [100.0% done] [ 56320/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=22144
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=4.0%, 2=86.8%, 4=3.1%, 8=6.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=74.2%, 4=15.5%, 10=3.0%, 20=0.1%, 50=0.3%, 100=0.7%
     lat (msec): 250=4.9%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22145
  read : io=100MiB, bw=6,272KiB/s, runt= 16718msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  503, avg=36.58, stdev=78.38
    bw (KiB/s) : min=    6, max=36798, per=70.46%, avg=9308.29, stdev=10892.72
  write: io=77,712KiB, bw=5,839KiB/s, runt= 13627msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  266, avg= 0.99, stdev=12.01
    bw (KiB/s) : min=    0, max=59392, per=163.98%, avg=30855.25, stdev=31314.34
  cpu          : usr=9.04%, sys=4.40%, ctx=11691
  IO depths    : 1=49.2%, 2=13.7%, 4=23.7%, 8=13.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=56.1%, 4=10.2%, 10=19.9%, 20=3.5%, 50=0.9%, 100=0.7%
     lat (msec): 250=6.7%, 500=1.9%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22146
  read : io=100MiB, bw=6,525KiB/s, runt= 16068msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  386, avg=36.13, stdev=77.14
    bw (KiB/s) : min=   20, max=45121, per=74.15%, avg=9796.50, stdev=15121.57
  write: io=81,656KiB, bw=6,125KiB/s, runt= 13651msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  335, avg= 3.38, stdev=21.87
    bw (KiB/s) : min=    0, max=13655, per=44.41%, avg=8356.60, stdev=5598.43
  cpu          : usr=10.36%, sys=5.10%, ctx=7759
  IO depths    : 1=15.2%, 2=44.1%, 4=26.6%, 8=14.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.0%, 4=14.4%, 10=21.7%, 20=5.7%, 50=1.8%, 100=0.7%
     lat (msec): 250=6.2%, 500=2.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=211MiB, aggrb=13,211KiB/s, minb=0KiB/s, maxb=6,525KiB/s, mint=16068msec, maxt=16718msec
  WRITE: io=245MiB, aggrb=18,816KiB/s, minb=0KiB/s, maxb=6,125KiB/s, mint=16068msec, maxt=16718msec

Disk stats (read/write):
  cciss!c0d0: ios=4479/3434, merge=900/59451, ticks=48644/1664084, in_queue=1712808, util=100.00%
4.85user 1.99system 0:17.03elapsed 40%CPU (0avgtext+0avgdata 0maxresident)k
553328inputs+501792outputs (0major+2458minor)pagefaults 0swaps