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] [15.8% done] [  6985/ 57226 kb/s] [eta 00m:16s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=24138, got signal=6
Threads: 2: [_Fm] [26.7% done] [ 14216/ 44470 kb/s] [eta 00m:11s]
Threads: 2: [_Fm] [41.7% done] [  2041/ 17604 kb/s] [eta 00m:07s]
Threads: 2: [_Fm] [50.0% done] [  1391/ 13227 kb/s] [eta 00m:06s]
Threads: 2: [_Fm] [53.8% done] [   898/  8029 kb/s] [eta 00m:06s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=24140, got signal=6
Threads: 1: [_F_] [100.0% done] [     0/ 20280 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_] [100.0% done] [ 49851/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=24138
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.6%, 2=85.2%, 4=7.7%, 8=5.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=69.0%, 4=13.7%, 10=8.3%, 20=4.4%, 50=0.2%, 100=0.4%
     lat (msec): 250=2.8%, 500=1.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24139
  read : io=100MiB, bw=6,604KiB/s, runt= 15876msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  354, avg=14.53, stdev=42.81
    bw (KiB/s) : min=   23, max=74186, per=201.30%, avg=17700.22, stdev=31063.02
  write: io=94,664KiB, bw=6,756KiB/s, runt= 14347msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  226, avg= 1.88, stdev=10.69
    bw (KiB/s) : min=    0, max=60401, per=117.99%, avg=22360.00, stdev=26383.13
  cpu          : usr=12.90%, sys=5.09%, ctx=5777
  IO depths    : 1=2.2%, 2=61.2%, 4=26.7%, 8=9.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.5%, 4=25.4%, 10=24.4%, 20=2.4%, 50=1.3%, 100=1.7%
     lat (msec): 250=1.7%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24140
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=2.8%, 2=65.0%, 4=14.0%, 8=18.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=53.7%, 4=12.0%, 10=13.3%, 20=2.2%, 50=3.8%, 100=5.1%
     lat (msec): 250=6.5%, 500=3.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=133MiB, aggrb=8,793KiB/s, minb=0KiB/s, maxb=6,604KiB/s, mint=0msec, maxt=15876msec
  WRITE: io=259MiB, aggrb=18,951KiB/s, minb=0KiB/s, maxb=6,756KiB/s, mint=0msec, maxt=15876msec

Disk stats (read/write):
  cciss!c0d0: ios=2562/4264, merge=396/61948, ticks=23548/1787816, in_queue=1811816, util=95.20%
4.76user 1.57system 0:16.21elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k
313272inputs+531096outputs (0major+2473minor)pagefaults 0swaps