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] [15.0% done] [ 15269/ 25450 kb/s] [eta 00m:17s]
Threads: 3: [mFm] [21.1% done] [ 13364/ 37152 kb/s] [eta 00m:15s]
Threads: 3: [mFF] [41.7% done] [  2131/ 53798 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [54.5% done] [  1509/ 18302 kb/s] [eta 00m:05s]
Threads: 3: [mFF] [58.3% done] [  1667/   496 kb/s] [eta 00m:05s]
Threads: 3: [mFF] [57.1% done] [  1439/     0 kb/s] [eta 00m:06s]
Threads: 3: [mFF] [60.0% done] [  1468/     0 kb/s] [eta 00m:06s]
Threads: 3: [mFF] [58.8% done] [  1805/     0 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [61.1% done] [  1110/     0 kb/s] [eta 00m:07s]
Threads: 3: [FFF] [100.0% done] [   528/ 10685 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1489, got signal=6
Threads: 2: [VV_] [73.7% done] [ 24880/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [88.2% done] [ 53191/     0 kb/s] [eta 00m:02s]
Threads: 2: [VV_] [100.0% done] [ 50990/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=1487
  read : io=100MiB, bw=6,318KiB/s, runt= 16596msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  401, avg=62.07, stdev=83.47
    bw (KiB/s) : min=    1, max=31621, per=50.12%, avg=6796.71, stdev=7800.08
  write: io=59,072KiB, bw=4,446KiB/s, runt= 13603msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  195, avg= 2.31, stdev=15.60
    bw (KiB/s) : min=    0, max=20589, per=44.39%, avg=7954.67, stdev=11063.51
  cpu          : usr=5.95%, sys=3.78%, ctx=6396
  IO depths    : 1=0.7%, 2=45.1%, 4=28.6%, 8=25.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=40.0%, 4=7.5%, 10=20.8%, 20=7.0%, 50=1.8%, 100=5.8%
     lat (msec): 250=14.3%, 500=2.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1488
  read : io=100MiB, bw=6,297KiB/s, runt= 16651msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  254, avg=21.99, stdev=41.44
    bw (KiB/s) : min=    7, max=43044, per=102.82%, avg=13942.38, stdev=15938.99
  write: io=92,312KiB, bw=6,949KiB/s, runt= 13603msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  123, avg= 1.66, stdev= 8.43
    bw (KiB/s) : min=    0, max=27264, per=94.36%, avg=16910.00, stdev=12188.03
  cpu          : usr=11.89%, sys=4.80%, ctx=6791
  IO depths    : 1=3.3%, 2=59.1%, 4=26.1%, 8=11.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.3%, 4=20.9%, 10=21.8%, 20=3.7%, 50=1.4%, 100=3.1%
     lat (msec): 250=5.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1489
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=85.9%, 4=3.2%, 8=10.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=70.9%, 4=14.2%, 10=2.1%, 20=0.4%, 50=0.7%, 100=3.2%
     lat (msec): 250=8.0%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=215MiB, aggrb=13,560KiB/s, minb=0KiB/s, maxb=6,318KiB/s, mint=0msec, maxt=16651msec
  WRITE: io=232MiB, aggrb=17,921KiB/s, minb=0KiB/s, maxb=6,949KiB/s, mint=0msec, maxt=16651msec

Disk stats (read/write):
  cciss!c0d0: ios=4606/3229, merge=887/56272, ticks=46120/1390804, in_queue=1441364, util=98.26%
4.49user 2.06system 0:16.96elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
558056inputs+476176outputs (0major+2455minor)pagefaults 0swaps