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] [30.0% done] [ 16196/ 52959 kb/s] [eta 00m:07s]
Threads: 3: [mmm] [36.4% done] [ 15285/ 20292 kb/s] [eta 00m:07s]
Threads: 3: [Fmm] [45.5% done] [  6556/ 43965 kb/s] [eta 00m:06s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22040, got signal=6
Threads: 2: [F_m] [66.7% done] [  1793/ 35904 kb/s] [eta 00m:03s]
Threads: 2: [F_m] [70.0% done] [  1081/     0 kb/s] [eta 00m:03s]
Threads: 2: [F_F] [100.0% done] [   447/  1944 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [70.0% done] [  5812/     0 kb/s] [eta 00m:06s]
Threads: 2: [V_V] [88.2% done] [ 57742/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 58373/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=22039
  read : io=100MiB, bw=6,293KiB/s, runt= 16662msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  261, avg=21.41, stdev=41.02
    bw (KiB/s) : min=    9, max=38728, per=109.54%, avg=15191.62, stdev=15399.93
  write: io=87,456KiB, bw=6,435KiB/s, runt= 13915msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.04
    clat (msec): min=    0, max=  130, avg= 0.74, stdev= 7.13
    bw (KiB/s) : min=    0, max=56144, per=127.20%, avg=22140.00, stdev=24270.07
  cpu          : usr=10.61%, sys=4.13%, ctx=11116
  IO depths    : 1=44.8%, 2=19.0%, 4=23.8%, 8=12.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=55.4%, 4=11.8%, 10=18.8%, 20=2.6%, 50=2.3%, 100=4.2%
     lat (msec): 250=4.6%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22040
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=70.1%, 2=6.9%, 4=4.6%, 8=18.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=75.3%, 4=1.0%, 10=0.4%, 20=1.3%, 50=4.5%, 100=9.3%
     lat (msec): 250=7.1%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22041
  read : io=100MiB, bw=6,234KiB/s, runt= 16819msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  371, avg=37.73, stdev=63.36
    bw (KiB/s) : min=    1, max=29102, per=69.34%, avg=9616.37, stdev=9633.60
  write: io=69,812KiB, bw=5,140KiB/s, runt= 13907msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  291, avg= 2.29, stdev=18.43
    bw (KiB/s) : min=    0, max=57663, per=106.81%, avg=18590.75, stdev=26355.00
  cpu          : usr=8.85%, sys=4.14%, ctx=10133
  IO depths    : 1=29.5%, 2=30.5%, 4=22.6%, 8=17.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.3%, 4=10.7%, 10=19.2%, 20=3.2%, 50=1.2%, 100=7.2%
     lat (msec): 250=7.9%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=222MiB, aggrb=13,869KiB/s, minb=0KiB/s, maxb=6,293KiB/s, mint=16819msec, maxt=16819msec
  WRITE: io=231MiB, aggrb=17,405KiB/s, minb=0KiB/s, maxb=6,435KiB/s, mint=16819msec, maxt=16819msec

Disk stats (read/write):
  cciss!c0d0: ios=4740/3238, merge=1026/55852, ticks=39604/1405752, in_queue=1445516, util=98.32%
4.58user 1.77system 0:17.17elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k
572896inputs+473072outputs (0major+2453minor)pagefaults 0swaps