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] [33.3% done] [  8557/ 94423 kb/s] [eta 00m:06s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=3948, got signal=6
Threads: 2: [m_F] [44.4% done] [  3015/ 19098 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=3947, got signal=6
Threads: 1: [__F] [100.0% done] [   243/ 35344 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] [80.0% done] [ 16550/     0 kb/s] [eta 00m:03s]
Threads: 1: [__V] [100.0% done] [ 59550/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=3947
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=14.8%, 2=68.1%, 4=2.2%, 8=14.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=75.5%, 4=7.1%, 10=0.2%, 20=0.7%, 50=3.5%, 100=6.1%
     lat (msec): 250=6.1%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3948
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=82.5%, 4=4.2%, 8=12.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=69.2%, 4=13.3%, 10=2.4%, 20=1.3%, 50=4.4%, 100=5.6%
     lat (msec): 250=3.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3949
  read : io=100MiB, bw=7,838KiB/s, runt= 13377msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  159, avg= 9.68, stdev=23.53
    bw (KiB/s) : min=   16, max=68419, per=236.56%, avg=26676.57, stdev=28991.02
  write: io=93,628KiB, bw=8,262KiB/s, runt= 11603msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   53, avg= 0.28, stdev= 2.60
    bw (KiB/s) : min=    0, max=59899, per=132.53%, avg=29634.00, stdev=34108.25
  cpu          : usr=12.65%, sys=5.38%, ctx=9591
  IO depths    : 1=47.1%, 2=21.4%, 4=23.2%, 8=8.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=63.3%, 4=16.0%, 10=14.7%, 20=1.0%, 50=1.0%, 100=2.9%
     lat (msec): 250=1.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=144MiB, aggrb=11,277KiB/s, minb=0KiB/s, maxb=7,838KiB/s, mint=13377msec, maxt=13377msec
  WRITE: io=247MiB, aggrb=22,361KiB/s, minb=0KiB/s, maxb=8,262KiB/s, mint=13377msec, maxt=13377msec

Disk stats (read/write):
  cciss!c0d0: ios=1318/3621, merge=962/59544, ticks=55232/1385176, in_queue=1496056, util=97.74%
4.47user 1.42system 0:13.71elapsed 43%CPU (0avgtext+0avgdata 0maxresident)k
312488inputs+507032outputs (0major+2455minor)pagefaults 0swaps