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] [9.1% done] [  9025/ 30890 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [26.7% done] [  3799/ 54610 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [33.3% done] [  5767/ 15009 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11064, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11062, got signal=6
Threads: 1: [_m_] [46.2% done] [  5832/ 69884 kb/s] [eta 00m:07s]
Threads: 1: [_m_] [53.8% done] [ 11121/     0 kb/s] [eta 00m:06s]
Threads: 1: [_m_] [61.5% done] [ 10896/     0 kb/s] [eta 00m:05s]
Threads: 1: [_F_] [100.0% done] [   516/ 13150 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_] [69.6% done] [   451/     0 kb/s] [eta 00m:07s]
Threads: 1: [_V_] [100.0% done] [ 44929/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=11062
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=86.4%, 4=4.7%, 8=8.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=72.8%, 4=15.3%, 10=2.1%, 20=0.5%, 50=0.3%, 100=0.6%
     lat (msec): 250=4.0%, 500=4.0%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11063
  read : io=100MiB, bw=5,985KiB/s, runt= 17520msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  461, avg=37.82, stdev=74.82
    bw (KiB/s) : min=   14, max=44287, per=111.93%, avg=8561.58, stdev=12989.99
  write: io=64,728KiB, bw=4,130KiB/s, runt= 16047msec
    slat (msec): min=    0, max=    3, avg= 0.00, stdev= 0.10
    clat (msec): min=    0, max=  306, avg= 3.50, stdev=24.73
    bw (KiB/s) : min=    0, max=12265, per=32.81%, avg=5045.25, stdev=5171.97
  cpu          : usr=8.01%, sys=3.31%, ctx=7133
  IO depths    : 1=13.5%, 2=32.9%, 4=27.1%, 8=26.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=38.5%, 4=9.5%, 10=16.3%, 20=10.2%, 50=16.2%, 100=3.5%
     lat (msec): 250=2.6%, 500=3.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11064
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=24.3%, 2=62.5%, 4=2.8%, 8=10.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=75.4%, 4=10.2%, 10=1.6%, 20=0.4%, 50=1.8%, 100=1.3%
     lat (msec): 250=6.5%, 500=2.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=128MiB, aggrb=7,649KiB/s, minb=0KiB/s, maxb=5,985KiB/s, mint=0msec, maxt=17520msec
  WRITE: io=235MiB, aggrb=15,379KiB/s, minb=0KiB/s, maxb=4,130KiB/s, mint=0msec, maxt=17520msec

Disk stats (read/write):
  cciss!c0d0: ios=2106/4106, merge=4887/56062, ticks=64076/1745176, in_queue=1809344, util=97.64%
4.47user 1.34system 0:17.85elapsed 32%CPU (0avgtext+0avgdata 0maxresident)k
337896inputs+482056outputs (0major+2473minor)pagefaults 0swaps