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] [23.1% done] [ 18980/ 21540 kb/s] [eta 00m:10s]
Threads: 3: [Fmm] [40.0% done] [ 10132/ 91856 kb/s] [eta 00m:06s]
Threads: 3: [Fmm] [55.6% done] [  3481/ 36192 kb/s] [eta 00m:04s]
Threads: 3: [FmF] [66.7% done] [   931/ 38613 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=21199, got signal=6
Threads: 2: [F_F] [100.0% done] [   406/  1838 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: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [73.7% done] [ 25018/     0 kb/s] [eta 00m:05s]
Threads: 2: [V_V] [93.8% done] [ 59658/     0 kb/s] [eta 00m:01s]
Threads: 2: [V_V] [100.0% done] [ 59617/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=21198
  read : io=100MiB, bw=6,357KiB/s, runt= 16493msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  321, avg=21.49, stdev=44.71
    bw (KiB/s) : min=    0, max=35666, per=117.04%, avg=16680.82, stdev=14530.06
  write: io=88,824KiB, bw=6,713KiB/s, runt= 13548msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  155, avg= 1.52, stdev= 8.81
    bw (KiB/s) : min=    0, max=60965, per=176.92%, avg=32713.25, stdev=31863.14
  cpu          : usr=11.86%, sys=6.79%, ctx=6191
  IO depths    : 1=1.2%, 2=61.6%, 4=26.7%, 8=10.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.4%, 4=20.0%, 10=21.8%, 20=3.2%, 50=0.7%, 100=2.2%
     lat (msec): 250=5.3%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21199
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=76.7%, 4=7.0%, 8=15.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=64.5%, 4=12.4%, 10=3.4%, 20=0.3%, 50=1.3%, 100=7.1%
     lat (msec): 250=8.5%, 500=2.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21200
  read : io=100MiB, bw=6,335KiB/s, runt= 16551msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  350, avg=28.98, stdev=53.18
    bw (KiB/s) : min=    7, max=36476, per=86.19%, avg=12284.47, stdev=11942.80
  write: io=78,988KiB, bw=5,970KiB/s, runt= 13547msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  194, avg= 2.04, stdev=12.56
    bw (KiB/s) : min=    0, max=59310, per=120.82%, avg=22339.00, stdev=25944.18
  cpu          : usr=9.93%, sys=6.21%, ctx=6435
  IO depths    : 1=1.6%, 2=57.0%, 4=27.2%, 8=14.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.9%, 4=17.4%, 10=23.6%, 20=4.1%, 50=0.5%, 100=3.5%
     lat (msec): 250=7.5%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=225MiB, aggrb=14,252KiB/s, minb=0KiB/s, maxb=6,357KiB/s, mint=16551msec, maxt=16551msec
  WRITE: io=239MiB, aggrb=18,490KiB/s, minb=0KiB/s, maxb=6,713KiB/s, mint=16551msec, maxt=16551msec

Disk stats (read/write):
  cciss!c0d0: ios=4617/3434, merge=1055/57554, ticks=44268/1371636, in_queue=1416996, util=96.55%
4.95user 2.82system 0:16.90elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
577160inputs+489288outputs (0major+2455minor)pagefaults 0swaps