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] [25.0% done] [ 16615/ 65987 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [33.3% done] [ 15322/ 48029 kb/s] [eta 00m:08s]
Threads: 3: [mmm] [55.6% done] [  9004/ 70615 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [FFm] [60.0% done] [   874/ 19751 kb/s] [eta 00m:04s]
fio: pid=14785, got signal=6
Threads: 2: [F_F] [100.0% done] [   436/ 10985 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: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [75.0% done] [ 26976/     0 kb/s] [eta 00m:05s]
Threads: 2: [V_V] [88.9% done] [ 56721/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 49937/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=14784
  read : io=100MiB, bw=5,937KiB/s, runt= 17651msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  306, avg=28.42, stdev=52.95
    bw (KiB/s) : min=    3, max=38899, per=97.01%, avg=12632.14, stdev=13096.34
  write: io=81,760KiB, bw=5,681KiB/s, runt= 14735msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  140, avg= 0.87, stdev= 6.48
    bw (KiB/s) : min=    0, max=57204, per=153.71%, avg=25084.50, stdev=24112.07
  cpu          : usr=8.72%, sys=4.51%, ctx=9944
  IO depths    : 1=36.0%, 2=24.1%, 4=26.2%, 8=13.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.2%, 4=11.4%, 10=23.8%, 20=3.7%, 50=1.0%, 100=3.3%
     lat (msec): 250=6.9%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14785
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=82.7%, 2=1.7%, 4=2.3%, 8=13.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=82.8%, 4=0.4%, 10=0.4%, 20=0.4%, 50=1.7%, 100=6.6%
     lat (msec): 250=6.8%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14786
  read : io=100MiB, bw=6,046KiB/s, runt= 17341msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  375, avg=35.26, stdev=61.72
    bw (KiB/s) : min=    5, max=37859, per=77.63%, avg=10107.72, stdev=11627.19
  write: io=70,464KiB, bw=4,896KiB/s, runt= 14735msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  291, avg= 2.52, stdev=18.11
    bw (KiB/s) : min=    0, max=19615, per=68.93%, avg=11248.75, stdev=8193.80
  cpu          : usr=8.10%, sys=4.01%, ctx=7630
  IO depths    : 1=11.7%, 2=42.8%, 4=27.4%, 8=18.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.7%, 4=10.3%, 10=22.6%, 20=5.7%, 50=3.3%, 100=4.4%
     lat (msec): 250=7.7%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=219MiB, aggrb=13,021KiB/s, minb=0KiB/s, maxb=6,046KiB/s, mint=17341msec, maxt=17651msec
  WRITE: io=229MiB, aggrb=16,319KiB/s, minb=0KiB/s, maxb=5,681KiB/s, mint=17341msec, maxt=17651msec

Disk stats (read/write):
  cciss!c0d0: ios=4716/3530, merge=1052/55123, ticks=43440/1465012, in_queue=1508988, util=86.29%
4.28user 1.91system 0:20.38elapsed 30%CPU (0avgtext+0avgdata 0maxresident)k
579976inputs+469688outputs (0major+2464minor)pagefaults 0swaps