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] [ 15574/ 55302 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12744, got signal=6
Threads: 2: [_Fm] [36.4% done] [  5800/ 49131 kb/s] [eta 00m:07s]
Threads: 2: [_Fm] [38.5% done] [  2779/     0 kb/s] [eta 00m:08s]
Threads: 2: [_Fm] [50.0% done] [  1609/ 15867 kb/s] [eta 00m:06s]
Threads: 2: [_Fm] [53.8% done] [  1513/  3807 kb/s] [eta 00m:06s]
Threads: 2: [_Fm] [66.7% done] [   858/ 17795 kb/s] [eta 00m:04s]
Threads: 2: [_FF] [100.0% done] [  1252/  5035 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] [77.8% done] [ 30115/     0 kb/s] [eta 00m:04s]
Threads: 2: [_VV] [93.8% done] [ 57551/     0 kb/s] [eta 00m:01s]
Threads: 1: [_V_] [100.0% done] [ 57889/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=12744
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=10.3%, 2=74.0%, 4=6.7%, 8=9.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=76.1%, 4=12.1%, 10=0.8%, 20=0.4%, 50=2.4%, 100=2.5%
     lat (msec): 250=5.1%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12745
  read : io=100MiB, bw=6,377KiB/s, runt= 16437msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  295, avg=18.09, stdev=36.90
    bw (KiB/s) : min=   23, max=52751, per=134.87%, avg=18405.30, stdev=18161.80
  write: io=93,848KiB, bw=7,108KiB/s, runt= 13519msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  142, avg= 1.35, stdev= 7.20
    bw (KiB/s) : min=    0, max=61923, per=185.35%, avg=34582.50, stdev=32090.54
  cpu          : usr=11.61%, sys=5.26%, ctx=7374
  IO depths    : 1=13.8%, 2=48.5%, 4=27.2%, 8=10.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=45.9%, 4=19.2%, 10=23.7%, 20=2.6%, 50=0.7%, 100=3.6%
     lat (msec): 250=3.9%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12746
  read : io=100MiB, bw=6,536KiB/s, runt= 16042msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  425, avg=43.67, stdev=70.81
    bw (KiB/s) : min=   31, max=34974, per=61.96%, avg=8455.64, stdev=10256.47
  write: io=64,556KiB, bw=4,886KiB/s, runt= 13527msec
    slat (msec): min=    0, max=    6, avg= 0.00, stdev= 0.17
    clat (msec): min=    0, max=  206, avg= 2.13, stdev=16.31
    bw (KiB/s) : min=    0, max=12458, per=44.28%, avg=8262.00, stdev=5723.15
  cpu          : usr=8.33%, sys=4.39%, ctx=9707
  IO depths    : 1=26.5%, 2=29.4%, 4=24.8%, 8=19.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.2%, 4=5.9%, 10=17.6%, 20=6.3%, 50=2.9%, 100=6.1%
     lat (msec): 250=9.1%, 500=1.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=214MiB, aggrb=13,647KiB/s, minb=0KiB/s, maxb=6,536KiB/s, mint=16042msec, maxt=16437msec
  WRITE: io=241MiB, aggrb=18,658KiB/s, minb=0KiB/s, maxb=7,108KiB/s, mint=16042msec, maxt=16437msec

Disk stats (read/write):
  cciss!c0d0: ios=4572/3533, merge=890/58045, ticks=39896/1459804, in_queue=1499700, util=97.47%
4.62user 1.92system 0:16.76elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k
557400inputs+493000outputs (0major+2457minor)pagefaults 0swaps