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: [mFm] [14.3% done] [ 11723/ 48648 kb/s] [eta 00m:18s]
Threads: 3: [mFm] [15.4% done] [  1891/     0 kb/s] [eta 00m:22s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16122, got signal=6
Threads: 2: [_Fm] [21.7% done] [  1434/ 22885 kb/s] [eta 00m:18s]
Threads: 2: [_Fm] [66.7% done] [     0/ 62318 kb/s] [eta 00m:03s]
Threads: 2: [_Fm] [63.6% done] [   199/     0 kb/s] [eta 00m:04s]
Threads: 2: [_Fm] [61.5% done] [   211/     0 kb/s] [eta 00m:05s]
Threads: 2: [_Fm] [64.3% done] [   174/    56 kb/s] [eta 00m:05s]
Threads: 2: [_Fm] [62.5% done] [   785/     0 kb/s] [eta 00m:06s]
Threads: 2: [_Fm] [64.7% done] [    73/     0 kb/s] [eta 00m:06s]
Threads: 2: [_Fm] [63.2% done] [   150/     0 kb/s] [eta 00m:07s]
Threads: 2: [_Vm] [65.0% done] [  1899/   223 kb/s] [eta 00m:07s]
Threads: 2: [_Vm] [63.6% done] [ 25173/     0 kb/s] [eta 00m:08s]
Threads: 2: [_Vm] [65.2% done] [ 21614/   284 kb/s] [eta 00m:08s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16124, got signal=6
Threads: 1: [_V_] [100.0% done] [ 27996/  2989 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [ 23176/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=16122
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=22.5%, 2=67.5%, 4=2.9%, 8=7.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=72.6%, 4=16.4%, 10=2.3%, 20=0.4%, 50=0.4%, 100=3.2%
     lat (msec): 250=3.4%, 500=0.2%, 750=0.5%, 1000=0.4%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16123
  read : io=100MiB, bw=6,099KiB/s, runt= 17191msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  215, avg=22.73, stdev=27.26
    bw (KiB/s) : min=    9, max=29982, per=205.48%, avg=16874.17, stdev=10897.13
  write: io=95,880KiB, bw=7,580KiB/s, runt= 12951msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  151, avg= 0.79, stdev= 7.16
    bw (KiB/s) : min=    0, max=58400, per=164.35%, avg=34452.00, stdev=28881.85
  cpu          : usr=9.73%, sys=4.58%, ctx=10386
  IO depths    : 1=40.4%, 2=16.0%, 4=28.9%, 8=14.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.3%, 4=4.6%, 10=9.4%, 20=15.6%, 50=17.2%, 100=2.0%
     lat (msec): 250=1.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16124
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=74.3%, 2=0.7%, 4=5.6%, 8=19.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=74.0%, 4=0.2%, 10=0.5%, 20=1.8%, 50=2.8%, 100=4.9%
     lat (msec): 250=8.7%, 500=1.8%, 750=2.2%, 1000=0.8%, >=2000=1.6%

Run status group 0 (all jobs):
   READ: io=135MiB, aggrb=8,212KiB/s, minb=0KiB/s, maxb=6,099KiB/s, mint=0msec, maxt=17191msec
  WRITE: io=259MiB, aggrb=20,963KiB/s, minb=0KiB/s, maxb=7,580KiB/s, mint=0msec, maxt=17191msec

Disk stats (read/write):
  cciss!c0d0: ios=2638/3842, merge=22/61597, ticks=46104/1431288, in_queue=1477556, util=98.65%
4.29user 1.51system 0:17.53elapsed 33%CPU (0avgtext+0avgdata 0maxresident)k
318432inputs+530376outputs (0major+2478minor)pagefaults 0swaps