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] [21.4% done] [ 12418/ 40227 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [33.3% done] [  4856/ 88554 kb/s] [eta 00m:08s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=21976, got signal=6
Threads: 2: [m_F] [38.5% done] [  1720/ 32694 kb/s] [eta 00m:08s]
Threads: 2: [m_F] [60.0% done] [   438/ 32130 kb/s] [eta 00m:04s]
Threads: 2: [m_F] [63.6% done] [   919/     0 kb/s] [eta 00m:04s]
Threads: 2: [F_F] [100.0% done] [   406/ 11848 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [77.8% done] [ 47441/     0 kb/s] [eta 00m:04s]
Threads: 2: [V_V] [100.0% done] [ 62485/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 63937/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=21975
  read : io=100MiB, bw=6,488KiB/s, runt= 16149msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  416, avg=37.72, stdev=78.10
    bw (KiB/s) : min=    7, max=39054, per=74.64%, avg=10412.58, stdev=14251.23
  write: io=83,896KiB, bw=6,430KiB/s, runt= 13359msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=  287, avg= 2.73, stdev=21.42
    bw (KiB/s) : min=    0, max=57629, per=85.28%, avg=16874.80, stdev=23188.08
  cpu          : usr=10.28%, sys=5.05%, ctx=8993
  IO depths    : 1=29.7%, 2=31.0%, 4=25.7%, 8=13.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.0%, 4=13.5%, 10=19.5%, 20=4.2%, 50=0.8%, 100=2.0%
     lat (msec): 250=6.4%, 500=2.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21976
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=9.4%, 2=78.8%, 4=3.4%, 8=8.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=82.4%, 4=6.1%, 10=0.6%, 20=0.4%, 50=0.3%, 100=1.8%
     lat (msec): 250=6.8%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21977
  read : io=100MiB, bw=6,507KiB/s, runt= 16113msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  283, avg=24.39, stdev=48.94
    bw (KiB/s) : min=   10, max=55894, per=109.55%, avg=15283.38, stdev=17213.69
  write: io=87,208KiB, bw=6,704KiB/s, runt= 13319msec
    slat (msec): min=    0, max=    3, avg= 0.01, stdev= 0.10
    clat (msec): min=    0, max=  123, avg= 0.86, stdev= 8.05
    bw (KiB/s) : min=    0, max=56172, per=119.12%, avg=23570.00, stdev=23818.80
  cpu          : usr=10.10%, sys=4.64%, ctx=9243
  IO depths    : 1=30.4%, 2=31.9%, 4=26.1%, 8=11.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=53.5%, 4=12.8%, 10=21.0%, 20=3.0%, 50=0.4%, 100=2.6%
     lat (msec): 250=6.2%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=215MiB, aggrb=13,951KiB/s, minb=0KiB/s, maxb=6,507KiB/s, mint=16113msec, maxt=16149msec
  WRITE: io=252MiB, aggrb=19,787KiB/s, minb=0KiB/s, maxb=6,704KiB/s, mint=16113msec, maxt=16149msec

Disk stats (read/write):
  cciss!c0d0: ios=4449/3351, merge=754/61106, ticks=41876/1581308, in_queue=1625332, util=98.45%
4.34user 1.88system 0:16.47elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k
550800inputs+516312outputs (0major+2454minor)pagefaults 0swaps