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] [ 15083/ 76413 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9522, got signal=6
Threads: 2: [m_m] [57.1% done] [ 12621/ 33836 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9521, got signal=6
Threads: 1: [__F] [100.0% done] [  4920/ 20232 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: [__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] [82.4% done] [ 23478/     0 kb/s] [eta 00m:03s]
fio: (groupid=0): err= 0: pid=9521
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=4.1%, 2=65.8%, 4=7.2%, 8=22.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=56.1%, 4=13.7%, 10=1.6%, 20=0.7%, 50=16.5%, 100=8.8%
     lat (msec): 250=2.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9522
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=51.7%, 2=34.1%, 4=2.3%, 8=11.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=76.7%, 4=8.3%, 10=1.1%, 20=0.2%, 50=1.4%, 100=8.7%
     lat (msec): 250=3.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9523
  read : io=100MiB, bw=6,934KiB/s, runt= 15082msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.05
    clat (msec): min=    0, max=  128, avg=18.92, stdev=30.00
    bw (KiB/s) : min=    6, max=63786, per=152.34%, avg=15199.18, stdev=22883.14
  write: io=75,212KiB, bw=5,638KiB/s, runt= 13659msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   87, avg= 1.30, stdev= 6.58
    bw (KiB/s) : min=    0, max=25173, per=81.21%, avg=14317.00, stdev=12938.46
  cpu          : usr=10.34%, sys=5.54%, ctx=5878
  IO depths    : 1=10.6%, 2=44.0%, 4=27.5%, 8=18.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.8%, 4=15.6%, 10=20.5%, 20=6.8%, 50=4.4%, 100=6.7%
     lat (msec): 250=1.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=144MiB, aggrb=9,977KiB/s, minb=0KiB/s, maxb=6,934KiB/s, mint=15082msec, maxt=15082msec
  WRITE: io=230MiB, aggrb=17,629KiB/s, minb=0KiB/s, maxb=5,638KiB/s, mint=15082msec, maxt=15082msec

Disk stats (read/write):
  cciss!c0d0: ios=1739/3364, merge=5329/55226, ticks=41620/1328464, in_queue=1371008, util=96.82%
4.30user 1.60system 0:15.45elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
347704inputs+470384outputs (0major+2460minor)pagefaults 0swaps