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] [60.0% done] [ 12361/ 79007 kb/s] [eta 00m:02s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15841, got signal=6
Threads: 2: [_mF] [66.7% done] [  8375/ 17897 kb/s] [eta 00m:02s]
Threads: 2: [_mF] [62.5% done] [  1175/     0 kb/s] [eta 00m:03s]
Threads: 2: [_mF] [66.7% done] [  1033/     0 kb/s] [eta 00m:03s]
Threads: 2: [_mF] [63.6% done] [  1065/     0 kb/s] [eta 00m:04s]
Threads: 2: [_FF] [100.0% done] [  1060/  6278 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] [70.0% done] [ 12913/     0 kb/s] [eta 00m:06s]
Threads: 2: [_VV] [88.2% done] [ 65584/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 64018/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=15841
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=79.8%, 4=6.8%, 8=13.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=65.5%, 4=15.8%, 10=2.4%, 20=0.5%, 50=3.6%, 100=9.5%
     lat (msec): 250=2.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15842
  read : io=100MiB, bw=6,459KiB/s, runt= 16233msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  362, avg=39.64, stdev=68.48
    bw (KiB/s) : min=   19, max=48829, per=67.89%, avg=9478.45, stdev=15081.72
  write: io=81,480KiB, bw=6,025KiB/s, runt= 13847msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  155, avg= 1.29, stdev= 8.88
    bw (KiB/s) : min=    0, max=23734, per=62.73%, avg=11634.50, stdev=11153.61
  cpu          : usr=10.15%, sys=4.98%, ctx=8923
  IO depths    : 1=27.7%, 2=26.0%, 4=27.1%, 8=19.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.7%, 4=11.4%, 10=21.6%, 20=6.2%, 50=3.6%, 100=6.0%
     lat (msec): 250=6.6%, 500=1.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15843
  read : io=100MiB, bw=6,301KiB/s, runt= 16639msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  315, avg=20.26, stdev=35.29
    bw (KiB/s) : min=    3, max=54444, per=115.07%, avg=16066.00, stdev=17750.43
  write: io=89,000KiB, bw=6,581KiB/s, runt= 13847msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  127, avg= 0.82, stdev= 6.64
    bw (KiB/s) : min=    0, max=59588, per=129.88%, avg=24086.75, stdev=25954.95
  cpu          : usr=10.99%, sys=5.19%, ctx=8557
  IO depths    : 1=26.3%, 2=32.6%, 4=26.6%, 8=14.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.5%, 4=14.8%, 10=20.6%, 20=4.6%, 50=5.7%, 100=3.5%
     lat (msec): 250=4.2%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=222MiB, aggrb=13,962KiB/s, minb=0KiB/s, maxb=6,459KiB/s, mint=16233msec, maxt=16639msec
  WRITE: io=245MiB, aggrb=18,546KiB/s, minb=0KiB/s, maxb=6,581KiB/s, mint=16233msec, maxt=16639msec

Disk stats (read/write):
  cciss!c0d0: ios=4596/3586, merge=1099/59027, ticks=32336/1470588, in_queue=1503064, util=97.26%
4.94user 2.21system 0:16.94elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k
540928inputs+501624outputs (0major+2453minor)pagefaults 0swaps