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=2952, got signal=6
Threads: 2: [_mm] [50.0% done] [ 13752/ 51376 kb/s] [eta 00m:03s]
Threads: 2: [_mF] [57.1% done] [  5286/ 31024 kb/s] [eta 00m:03s]
Threads: 2: [_mF] [62.5% done] [  1101/     0 kb/s] [eta 00m:03s]
Threads: 2: [_mF] [66.7% done] [  1182/  4047 kb/s] [eta 00m:03s]
Threads: 2: [_FF] [100.0% done] [   736/  9400 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: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [66.7% done] [     0/     0 kb/s] [eta 00m:07s]
Threads: 2: [_VV] [88.2% done] [ 56295/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 59450/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=2952
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=84.5%, 4=12.2%, 8=3.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=87.7%, 4=6.7%, 10=1.8%, 20=0.1%, 50=0.1%, 100=1.0%
     lat (msec): 250=1.7%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2953
  read : io=100MiB, bw=6,241KiB/s, runt= 16800msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  375, avg=36.53, stdev=66.14
    bw (KiB/s) : min=   10, max=34217, per=83.93%, avg=10746.56, stdev=12552.18
  write: io=78,496KiB, bw=5,750KiB/s, runt= 13979msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  339, avg= 2.41, stdev=17.52
    bw (KiB/s) : min=    0, max=56909, per=103.12%, avg=19408.75, stdev=25475.11
  cpu          : usr=7.83%, sys=4.90%, ctx=7214
  IO depths    : 1=9.8%, 2=41.4%, 4=30.1%, 8=18.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.6%, 4=8.0%, 10=24.2%, 20=6.3%, 50=3.9%, 100=4.6%
     lat (msec): 250=6.8%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2954
  read : io=100MiB, bw=6,196KiB/s, runt= 16921msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  391, avg=20.81, stdev=40.31
    bw (KiB/s) : min=    5, max=35331, per=131.39%, avg=16822.64, stdev=13116.90
  write: io=82,892KiB, bw=6,072KiB/s, runt= 13979msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  147, avg= 1.45, stdev= 7.06
    bw (KiB/s) : min=    0, max=60588, per=129.00%, avg=24279.67, stdev=32035.03
  cpu          : usr=8.49%, sys=4.94%, ctx=6476
  IO depths    : 1=3.2%, 2=53.2%, 4=29.3%, 8=14.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.3%, 4=15.5%, 10=23.5%, 20=4.7%, 50=4.6%, 100=4.6%
     lat (msec): 250=3.3%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=207MiB, aggrb=12,804KiB/s, minb=0KiB/s, maxb=6,241KiB/s, mint=16800msec, maxt=16921msec
  WRITE: io=251MiB, aggrb=18,821KiB/s, minb=0KiB/s, maxb=6,072KiB/s, mint=16800msec, maxt=16921msec

Disk stats (read/write):
  cciss!c0d0: ios=4325/3790, merge=879/60358, ticks=34836/1502716, in_queue=1538116, util=97.72%
3.70user 2.24system 0:17.26elapsed 34%CPU (0avgtext+0avgdata 0maxresident)k
523024inputs+514016outputs (0major+2457minor)pagefaults 0swaps