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] [13.6% done] [ 17168/  4652 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [19.0% done] [ 13832/  6985 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [22.7% done] [ 10248/  9935 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [27.3% done] [  6952/  9455 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [30.4% done] [  9975/  9545 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [34.8% done] [ 12885/  6794 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [37.5% done] [ 12231/  4579 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [41.7% done] [ 11877/  5103 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [  6769/  7375 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  9070/  5295 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [52.0% done] [ 13661/   780 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [ 12206/  1670 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.7% done] [  3701/  7338 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [59.3% done] [  7399/  2730 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  6960/  2734 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  3625/  4863 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9156, got signal=6
Threads: 2: [m_m] [63.3% done] [  2424/  4661 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9155, got signal=6
Threads: 1: [__m] [64.5% done] [  6326/   983 kb/s] [eta 00m:11s]
Threads: 1: [__V] [77.8% done] [ 18171/     0 kb/s] [eta 00m:06s]
Threads: 1: [__V] [91.7% done] [ 20679/     0 kb/s] [eta 00m:02s]
fio: (groupid=0): err= 0: pid=9155
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=5.3%, 8=94.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=2.0%, 50=9.1%, 100=46.0%
     lat (msec): 250=41.8%, 500=0.4%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9156
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.1%, 8=95.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=0.1%, 50=9.6%, 100=46.8%
     lat (msec): 250=42.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9157
  read : io=99MiB, bw=4,675KiB/s, runt= 22296msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    1, max=  527, avg=69.18, stdev=51.96
    bw (KiB/s) : min=    7, max=26451, per=48.24%, avg=5344.00, stdev=6304.59
  write: io=36,632KiB, bw=1,817KiB/s, runt= 20636msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=   42, max=  539, avg=120.18, stdev=49.39
    bw (KiB/s) : min=    0, max= 7506, per=56.15%, avg=2837.36, stdev=2595.76
  cpu          : usr=0.34%, sys=0.47%, ctx=7623
  IO depths    : 1=0.1%, 2=0.5%, 4=15.7%, 8=83.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.7%, 10=4.1%, 20=7.7%, 50=19.5%, 100=31.2%
     lat (msec): 250=35.6%, 500=0.6%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=236MiB, aggrb=11,079KiB/s, minb=0KiB/s, maxb=4,675KiB/s, mint=22296msec, maxt=22296msec
  WRITE: io=99MiB, aggrb=5,053KiB/s, minb=0KiB/s, maxb=1,817KiB/s, mint=22296msec, maxt=22296msec

Disk stats (read/write):
  cciss!c0d0: ios=4431/2094, merge=844/93, ticks=48656/31412, in_queue=80064, util=98.99%
0.26user 0.37system 0:22.62elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
483104inputs+203728outputs (0major+2439minor)pagefaults 0swaps