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] [18.8% done] [ 21224/ 24213 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [ 14360/ 79827 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26612, got signal=6
Threads: 2: [F_m] [62.5% done] [  4364/ 64628 kb/s] [eta 00m:03s]
Threads: 2: [F_m] [60.0% done] [  1003/  2490 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26613, got signal=6
Threads: 1: [F__] [100.0% done] [   427/ 12141 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: [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__] [73.7% done] [  5775/     0 kb/s] [eta 00m:05s]
Threads: 1: [V__] [100.0% done] [ 60382/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=26611
  read : io=100MiB, bw=6,821KiB/s, runt= 15371msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  194, avg=18.58, stdev=37.98
    bw (KiB/s) : min=    9, max=62808, per=141.27%, avg=15150.00, stdev=22448.66
  write: io=78,980KiB, bw=5,800KiB/s, runt= 13943msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  152, avg= 1.19, stdev= 7.80
    bw (KiB/s) : min=    0, max=26324, per=70.88%, avg=11718.67, stdev=13397.31
  cpu          : usr=8.77%, sys=6.25%, ctx=5602
  IO depths    : 1=9.8%, 2=48.3%, 4=27.9%, 8=13.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.3%, 4=20.6%, 10=16.1%, 20=3.6%, 50=1.2%, 100=3.7%
     lat (msec): 250=4.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26612
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=3.0%, 2=73.5%, 4=8.2%, 8=15.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=72.3%, 4=10.8%, 10=1.1%, 20=0.1%, 50=0.7%, 100=8.4%
     lat (msec): 250=6.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26613
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=73.2%, 4=4.4%, 8=22.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=61.1%, 4=12.0%, 10=1.2%, 20=0.2%, 50=6.5%, 100=8.5%
     lat (msec): 250=8.5%, 500=1.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=157MiB, aggrb=10,724KiB/s, minb=0KiB/s, maxb=6,821KiB/s, mint=0msec, maxt=15371msec
  WRITE: io=220MiB, aggrb=16,534KiB/s, minb=0KiB/s, maxb=5,800KiB/s, mint=0msec, maxt=15371msec

Disk stats (read/write):
  cciss!c0d0: ios=2101/3505, merge=18893/52555, ticks=56388/1335044, in_queue=1397652, util=97.13%
3.79user 1.83system 0:15.71elapsed 35%CPU (0avgtext+0avgdata 0maxresident)k
368352inputs+450296outputs (0major+2469minor)pagefaults 0swaps