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] [30.0% done] [  5128/ 57258 kb/s] [eta 00m:07s]
Threads: 3: [mmF] [33.3% done] [  6101/  1423 kb/s] [eta 00m:08s]
Threads: 3: [mmF] [33.3% done] [  3481/ 23489 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29390, got signal=6
Threads: 2: [_mF] [42.9% done] [  4075/ 18354 kb/s] [eta 00m:08s]
Threads: 2: [_mF] [50.0% done] [  1208/  8053 kb/s] [eta 00m:07s]
Threads: 2: [_FF] [100.0% done] [    44/ 31061 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [ 43087/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=29390
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=81.4%, 4=5.2%, 8=13.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=68.1%, 4=14.3%, 10=1.9%, 20=0.1%, 50=0.3%, 100=2.9%
     lat (msec): 250=10.9%, 500=1.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29391
  read : io=100MiB, bw=8,295KiB/s, runt= 12635msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  452, avg=33.24, stdev=69.72
    bw (KiB/s) : min=   40, max=58549, per=106.11%, avg=10444.69, stdev=17876.36
  write: io=73,720KiB, bw=6,735KiB/s, runt= 11207msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  403, avg= 2.53, stdev=20.54
    bw (KiB/s) : min=    0, max=60047, per=87.41%, avg=20714.50, stdev=26908.39
  cpu          : usr=12.85%, sys=5.51%, ctx=7240
  IO depths    : 1=10.0%, 2=52.0%, 4=23.3%, 8=14.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.6%, 4=16.3%, 10=20.4%, 20=3.5%, 50=0.9%, 100=1.8%
     lat (msec): 250=6.8%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29392
  read : io=0KiB, bw=0KiB/s, runt=  8909msec
  write: io=100MiB, bw=11,863KiB/s, runt=  8839msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=102129, per=224.98%, avg=53318.00, stdev=51213.45
  cpu          : usr=11.00%, sys=4.36%, ctx=8751
  IO depths    : 1=99.9%, 2=0.1%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=99.8%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=119MiB, aggrb=9,843KiB/s, minb=0KiB/s, maxb=8,295KiB/s, mint=8909msec, maxt=12635msec
  WRITE: io=253MiB, aggrb=23,699KiB/s, minb=0KiB/s, maxb=11,863KiB/s, mint=8909msec, maxt=12635msec

Disk stats (read/write):
  cciss!c0d0: ios=2711/3179, merge=525/61624, ticks=26480/1409128, in_queue=1435996, util=97.33%
4.02user 1.46system 0:12.97elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k
327824inputs+518864outputs (0major+2441minor)pagefaults 0swaps