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] [25.0% done] [ 13978/ 46978 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [40.0% done] [  6615/ 44060 kb/s] [eta 00m:06s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12504, got signal=6
Threads: 2: [_mm] [41.7% done] [  5881/ 76343 kb/s] [eta 00m:07s]
Threads: 2: [_mm] [42.9% done] [  3079/     0 kb/s] [eta 00m:08s]
Threads: 2: [_mm] [50.0% done] [  3527/ 12125 kb/s] [eta 00m:07s]
Threads: 2: [_mF] [53.3% done] [  1761/  6809 kb/s] [eta 00m:07s]
Threads: 2: [_FF] [100.0% done] [   545/ 21077 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] [75.0% done] [ 25458/     0 kb/s] [eta 00m:05s]
Threads: 2: [_VV] [94.1% done] [ 56628/     0 kb/s] [eta 00m:01s]
Threads: 2: [_VV] [100.0% done] [ 56168/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=12504
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=83.1%, 4=6.5%, 8=9.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=77.1%, 4=9.7%, 10=1.8%, 20=0.3%, 50=0.7%, 100=0.9%
     lat (msec): 250=7.9%, 500=1.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12505
  read : io=100MiB, bw=5,980KiB/s, runt= 17517msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  471, avg=45.62, stdev=85.03
    bw (KiB/s) : min=   10, max=34775, per=67.45%, avg=8735.81, stdev=11191.89
  write: io=78,484KiB, bw=5,516KiB/s, runt= 14568msec
    slat (msec): min=    0, max=    9, avg= 0.01, stdev= 0.24
    clat (msec): min=    0, max=  206, avg= 2.37, stdev=14.54
    bw (KiB/s) : min=    0, max=13463, per=43.25%, avg=7391.75, stdev=6171.68
  cpu          : usr=10.07%, sys=3.63%, ctx=9788
  IO depths    : 1=26.6%, 2=35.1%, 4=23.5%, 8=14.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.3%, 4=13.8%, 10=18.9%, 20=5.0%, 50=1.2%, 100=1.6%
     lat (msec): 250=9.0%, 500=2.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12506
  read : io=100MiB, bw=5,962KiB/s, runt= 17585msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  403, avg=38.57, stdev=68.43
    bw (KiB/s) : min=    5, max=35240, per=72.91%, avg=9442.00, stdev=11298.05
  write: io=80,036KiB, bw=5,624KiB/s, runt= 14571msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=  163, avg= 1.65, stdev=11.13
    bw (KiB/s) : min=    0, max=60221, per=113.95%, avg=19475.75, stdev=27487.56
  cpu          : usr=9.05%, sys=4.09%, ctx=6981
  IO depths    : 1=4.1%, 2=52.2%, 4=27.2%, 8=16.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.1%, 4=14.5%, 10=20.0%, 20=3.6%, 50=1.7%, 100=4.0%
     lat (msec): 250=8.6%, 500=1.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=217MiB, aggrb=12,951KiB/s, minb=0KiB/s, maxb=5,980KiB/s, mint=17517msec, maxt=17585msec
  WRITE: io=238MiB, aggrb=17,092KiB/s, minb=0KiB/s, maxb=5,624KiB/s, mint=17517msec, maxt=17585msec

Disk stats (read/write):
  cciss!c0d0: ios=4722/3500, merge=1107/57217, ticks=53048/1675140, in_queue=1730992, util=98.81%
4.44user 1.78system 0:17.88elapsed 34%CPU (0avgtext+0avgdata 0maxresident)k
571776inputs+486464outputs (0major+2459minor)pagefaults 0swaps