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] [50.0% done] [ 13479/ 48326 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20526, got signal=6
Threads: 2: [mm_] [50.0% done] [ 13906/ 60435 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20524, got signal=6
Threads: 1: [_m_] [55.6% done] [ 11047/  2505 kb/s] [eta 00m:04s]
Threads: 1: [_m_] [60.0% done] [  1492/     0 kb/s] [eta 00m:04s]
Threads: 1: [_m_] [63.6% done] [  1061/  5210 kb/s] [eta 00m:04s]
Threads: 1: [_m_] [66.7% done] [   699/  2062 kb/s] [eta 00m:04s]
Threads: 1: [_m_] [64.3% done] [  1326/     0 kb/s] [eta 00m:05s]
Threads: 1: [_F_] [100.0% done] [   728/  5637 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] [ 19719/     0 kb/s] [eta 00m:04s]
fio: (groupid=0): err= 0: pid=20524
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=71.1%, 4=10.1%, 8=18.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=58.7%, 4=16.0%, 10=3.4%, 20=0.7%, 50=4.6%, 100=11.2%
     lat (msec): 250=5.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20525
  read : io=100MiB, bw=6,156KiB/s, runt= 17032msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  391, avg=45.69, stdev=73.99
    bw (KiB/s) : min=   22, max=52601, per=96.35%, avg=8190.50, stdev=14560.61
  write: io=64,252KiB, bw=4,194KiB/s, runt= 15687msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  295, avg= 5.75, stdev=17.77
    bw (KiB/s) : min=    0, max=10523, per=31.18%, avg=4679.75, stdev=4566.11
  cpu          : usr=6.83%, sys=3.43%, ctx=5872
  IO depths    : 1=2.5%, 2=29.7%, 4=36.9%, 8=30.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=19.0%, 4=10.5%, 10=30.1%, 20=13.0%, 50=10.6%, 100=7.7%
     lat (msec): 250=5.8%, 500=3.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20526
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.6%, 2=75.4%, 4=10.9%, 8=12.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=63.1%, 4=12.8%, 10=6.4%, 20=5.1%, 50=3.6%, 100=4.6%
     lat (msec): 250=4.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=138MiB, aggrb=8,501KiB/s, minb=0KiB/s, maxb=6,156KiB/s, mint=0msec, maxt=17032msec
  WRITE: io=225MiB, aggrb=15,011KiB/s, minb=0KiB/s, maxb=4,194KiB/s, mint=0msec, maxt=17032msec

Disk stats (read/write):
  cciss!c0d0: ios=3159/3808, merge=766/53499, ticks=25832/1522884, in_queue=1549036, util=97.10%
3.94user 1.25system 0:17.39elapsed 29%CPU (0avgtext+0avgdata 0maxresident)k
362800inputs+459960outputs (0major+2462minor)pagefaults 0swaps