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: [mmF] [33.3% done] [ 17668/ 41967 kb/s] [eta 00m:06s]
Threads: 3: [mmF] [33.3% done] [  6532/     0 kb/s] [eta 00m:08s]
Threads: 3: [mmF] [35.7% done] [  3222/ 36949 kb/s] [eta 00m:09s]
Threads: 3: [mmF] [37.5% done] [  3221/  2359 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=7615, got signal=6
Threads: 2: [m_F] [46.7% done] [  1903/ 20736 kb/s] [eta 00m:08s]
Threads: 2: [m_F] [57.1% done] [   698/ 13494 kb/s] [eta 00m:06s]
Threads: 2: [m_F] [60.0% done] [   857/  5550 kb/s] [eta 00m:06s]
Threads: 2: [m_F] [66.7% done] [   768/  7333 kb/s] [eta 00m:05s]
Threads: 2: [m_F] [68.8% done] [  2133/     0 kb/s] [eta 00m:05s]
Threads: 2: [F_F] [100.0% done] [  2970/     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] [ 57177/     0 kb/s] [eta 00m:04s]
Threads: 2: [V_V] [100.0% done] [ 64345/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=7614
  read : io=100MiB, bw=6,617KiB/s, runt= 15826msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  458, avg=57.29, stdev=90.91
    bw (KiB/s) : min=   48, max=29793, per=39.39%, avg=6051.48, stdev=8255.02
  write: io=63,848KiB, bw=4,960KiB/s, runt= 13180msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  284, avg= 4.08, stdev=23.98
    bw (KiB/s) : min=    0, max=13143, per=37.90%, avg=6718.25, stdev=5640.96
  cpu          : usr=8.32%, sys=4.57%, ctx=5876
  IO depths    : 1=1.4%, 2=45.9%, 4=26.0%, 8=26.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=34.8%, 4=12.8%, 10=19.2%, 20=9.0%, 50=3.6%, 100=7.8%
     lat (msec): 250=7.6%, 500=4.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7615
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=76.9%, 4=3.3%, 8=19.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=64.1%, 4=11.5%, 10=2.5%, 20=0.2%, 50=2.0%, 100=10.0%
     lat (msec): 250=7.5%, 500=1.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7616
  read : io=100MiB, bw=6,730KiB/s, runt= 15578msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  154, avg=12.62, stdev=29.23
    bw (KiB/s) : min=    5, max=57848, per=133.84%, avg=20560.67, stdev=22133.05
  write: io=94,684KiB, bw=7,369KiB/s, runt= 13156msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   86, avg= 1.00, stdev= 4.63
    bw (KiB/s) : min=    0, max=59927, per=163.15%, avg=28919.20, stdev=29806.91
  cpu          : usr=13.15%, sys=5.73%, ctx=6200
  IO depths    : 1=11.3%, 2=53.7%, 4=26.2%, 8=8.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=54.2%, 4=21.5%, 10=17.4%, 20=1.0%, 50=0.6%, 100=2.6%
     lat (msec): 250=2.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=232MiB, aggrb=15,362KiB/s, minb=0KiB/s, maxb=6,730KiB/s, mint=15578msec, maxt=15826msec
  WRITE: io=223MiB, aggrb=17,725KiB/s, minb=0KiB/s, maxb=7,369KiB/s, mint=15578msec, maxt=15826msec

Disk stats (read/write):
  cciss!c0d0: ios=2561/3219, merge=22240/53606, ticks=168628/1412864, in_queue=1583816, util=97.46%
4.78user 2.05system 0:16.17elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k
563200inputs+456320outputs (0major+2443minor)pagefaults 0swaps