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] [17.6% done] [ 13958/ 40903 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [36.4% done] [ 13394/ 22989 kb/s] [eta 00m:07s]
Threads: 3: [mmm] [41.7% done] [ 16253/     0 kb/s] [eta 00m:07s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9964, got signal=6
Threads: 2: [mm_] [46.2% done] [  9833/ 16965 kb/s] [eta 00m:07s]
Threads: 2: [mm_] [46.7% done] [  4083/  2905 kb/s] [eta 00m:08s]
Threads: 2: [mm_] [57.1% done] [  2591/ 16221 kb/s] [eta 00m:06s]
Threads: 2: [mm_] [60.0% done] [  2875/ 18299 kb/s] [eta 00m:06s]
Threads: 2: [mF_] [66.7% done] [  1330/  9017 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9962, got signal=6
Threads: 1: [_F_] [100.0% done] [   268/  4555 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_] [84.2% done] [ 24035/     0 kb/s] [eta 00m:03s]
fio: (groupid=0): err= 0: pid=9962
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=4.3%, 2=43.0%, 4=22.7%, 8=30.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=25.2%, 4=15.8%, 10=23.4%, 20=0.5%, 50=4.4%, 100=10.6%
     lat (msec): 250=16.1%, 500=3.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9963
  read : io=100MiB, bw=6,198KiB/s, runt= 16914msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  337, avg=42.88, stdev=61.15
    bw (KiB/s) : min=   25, max=44411, per=92.14%, avg=8530.52, stdev=12286.98
  write: io=56,304KiB, bw=3,713KiB/s, runt= 15527msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  218, avg= 3.03, stdev=17.19
    bw (KiB/s) : min=    0, max=21055, per=64.64%, avg=8974.50, stdev=8839.52
  cpu          : usr=6.91%, sys=4.02%, ctx=6198
  IO depths    : 1=1.2%, 2=44.5%, 4=29.2%, 8=25.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=34.9%, 4=11.8%, 10=21.7%, 20=9.2%, 50=3.1%, 100=7.9%
     lat (msec): 250=10.4%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9964
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=73.1%, 4=5.6%, 8=21.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=54.0%, 4=17.4%, 10=2.5%, 20=1.1%, 50=2.8%, 100=15.0%
     lat (msec): 250=6.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=149MiB, aggrb=9,258KiB/s, minb=0KiB/s, maxb=6,198KiB/s, mint=0msec, maxt=16914msec
  WRITE: io=206MiB, aggrb=13,883KiB/s, minb=0KiB/s, maxb=3,713KiB/s, mint=0msec, maxt=16914msec

Disk stats (read/write):
  cciss!c0d0: ios=3634/3308, merge=623/49227, ticks=39388/1405896, in_queue=1445636, util=97.04%
3.67user 1.48system 0:17.22elapsed 29%CPU (0avgtext+0avgdata 0maxresident)k
402184inputs+421072outputs (0major+2468minor)pagefaults 0swaps