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: [Fmm] [75.0% done] [  3254/115509 kb/s] [eta 00m:01s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=8223, got signal=6
Threads: 2: [F_F] [100.0% done] [   130/ 11315 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: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [73.3% done] [ 38757/     0 kb/s] [eta 00m:04s]
Threads: 2: [V_V] [92.3% done] [ 68566/     0 kb/s] [eta 00m:01s]
Threads: 1: [__V] [100.0% done] [ 66271/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=8222
  read : io=100MiB, bw=8,128KiB/s, runt= 12895msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  179, avg= 9.58, stdev=26.39
    bw (KiB/s) : min=    8, max=60047, per=150.39%, avg=25530.86, stdev=23963.13
  write: io=98,824KiB, bw=9,637KiB/s, runt= 10500msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  142, avg= 1.07, stdev= 5.99
    bw (KiB/s) : min=    0, max=61399, per=114.86%, avg=29266.33, stdev=30799.69
  cpu          : usr=14.67%, sys=6.02%, ctx=6357
  IO depths    : 1=20.1%, 2=46.7%, 4=26.2%, 8=7.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.3%, 4=25.9%, 10=20.5%, 20=0.7%, 50=0.1%, 100=1.1%
     lat (msec): 250=2.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8223
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=12.1%, 2=77.6%, 4=2.6%, 8=7.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=79.0%, 4=10.7%, 10=1.3%, 20=0.3%, 50=1.2%, 100=3.5%
     lat (msec): 250=3.5%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8224
  read : io=100MiB, bw=7,977KiB/s, runt= 13144msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  308, avg=22.29, stdev=44.25
    bw (KiB/s) : min=    6, max=34929, per=91.90%, avg=15601.73, stdev=12056.01
  write: io=73,760KiB, bw=7,179KiB/s, runt= 10520msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  263, avg= 0.97, stdev=11.52
    bw (KiB/s) : min=    0, max=54340, per=106.63%, avg=27170.00, stdev=38424.18
  cpu          : usr=6.66%, sys=4.08%, ctx=5077
  IO depths    : 1=2.1%, 2=56.4%, 4=26.5%, 8=15.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=54.1%, 4=10.9%, 10=20.0%, 20=2.9%, 50=3.9%, 100=3.3%
     lat (msec): 250=4.2%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=213MiB, aggrb=16,976KiB/s, minb=0KiB/s, maxb=8,128KiB/s, mint=13144msec, maxt=13144msec
  WRITE: io=256MiB, aggrb=25,480KiB/s, minb=0KiB/s, maxb=9,637KiB/s, mint=13144msec, maxt=13144msec

Disk stats (read/write):
  cciss!c0d0: ios=1736/3057, merge=13755/62311, ticks=145316/1222544, in_queue=1370592, util=97.39%
4.07user 1.70system 0:13.49elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k
498992inputs+523704outputs (0major+2440minor)pagefaults 0swaps