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: [Fmm] [20.0% done] [  8684/ 59392 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15487, got signal=6
Threads: 2: [F_m] [30.8% done] [  1912/ 16884 kb/s] [eta 00m:09s]
Threads: 2: [F_m] [33.3% done] [  2872/     0 kb/s] [eta 00m:10s]
Threads: 2: [F_m] [40.0% done] [  1432/  9060 kb/s] [eta 00m:09s]
Threads: 2: [F_m] [41.2% done] [  1984/     0 kb/s] [eta 00m:10s]
Threads: 2: [F_m] [42.1% done] [  1841/     0 kb/s] [eta 00m:11s]
Threads: 2: [F_F] [100.0% done] [   508/ 38308 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: [V_F] [92.3% done] [ 33036/     0 kb/s] [eta 00m:01s]
Threads: 2: [V_V] [72.2% done] [ 51116/     0 kb/s] [eta 00m:05s]
Threads: 1: [__V] [93.3% done] [ 49724/     0 kb/s] [eta 00m:01s]
fio: (groupid=0): err= 0: pid=15486
  read : io=100MiB, bw=7,628KiB/s, runt= 13745msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  117, avg=11.78, stdev=19.68
    bw (KiB/s) : min=    9, max=47849, per=160.64%, avg=24048.12, stdev=22559.17
  write: io=95,700KiB, bw=8,566KiB/s, runt= 11440msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   63, avg= 0.71, stdev= 2.87
    bw (KiB/s) : min=    0, max=59592, per=135.85%, avg=26195.00, stdev=30441.80
  cpu          : usr=13.07%, sys=4.71%, ctx=3593
  IO depths    : 1=6.7%, 2=60.0%, 4=24.6%, 8=8.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.1%, 4=8.3%, 10=37.9%, 20=1.2%, 50=1.7%, 100=3.3%
     lat (msec): 250=0.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15487
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=6.0%, 2=81.7%, 4=4.3%, 8=7.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=77.7%, 4=10.6%, 10=1.4%, 20=0.4%, 50=0.5%, 100=6.4%
     lat (msec): 250=2.4%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15488
  read : io=100MiB, bw=6,996KiB/s, runt= 14987msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  419, avg=44.06, stdev=86.20
    bw (KiB/s) : min=   11, max=40999, per=60.63%, avg=9076.00, stdev=12025.52
  write: io=61,912KiB, bw=4,860KiB/s, runt= 13044msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  355, avg= 3.26, stdev=23.92
    bw (KiB/s) : min=    0, max=59736, per=92.97%, avg=17927.00, stdev=28119.13
  cpu          : usr=9.21%, sys=3.84%, ctx=3987
  IO depths    : 1=5.7%, 2=54.0%, 4=22.8%, 8=17.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.0%, 4=5.0%, 10=32.5%, 20=3.4%, 50=0.8%, 100=6.7%
     lat (msec): 250=3.1%, 500=4.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=214MiB, aggrb=14,970KiB/s, minb=0KiB/s, maxb=7,628KiB/s, mint=14987msec, maxt=14987msec
  WRITE: io=240MiB, aggrb=19,283KiB/s, minb=0KiB/s, maxb=8,566KiB/s, mint=14987msec, maxt=14987msec

Disk stats (read/write):
  cciss!c0d0: ios=2296/3231, merge=15176/58164, ticks=113376/1402588, in_queue=1515972, util=96.80%
4.47user 1.60system 0:15.34elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k
530056inputs+491424outputs (0major+2431minor)pagefaults 0swaps