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] [16.7% done] [ 16477/ 66308 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=4814, got signal=6
Threads: 2: [_mm] [33.3% done] [ 12040/ 48327 kb/s] [eta 00m:08s]
Threads: 2: [_mm] [41.7% done] [ 14858/   740 kb/s] [eta 00m:07s]
Threads: 2: [_mm] [54.5% done] [  2664/ 15924 kb/s] [eta 00m:05s]
Threads: 2: [_FF] [100.0% done] [  1312/ 32016 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [71.4% done] [ 12381/     0 kb/s] [eta 00m:06s]
Threads: 2: [_VV] [88.9% done] [ 56908/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 56872/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=4814
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=80.5%, 4=7.2%, 8=12.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=65.8%, 4=15.7%, 10=1.9%, 20=2.8%, 50=5.0%, 100=4.8%
     lat (msec): 250=3.1%, 500=0.3%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4815
  read : io=100MiB, bw=5,977KiB/s, runt= 17541msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  579, avg=36.07, stdev=63.29
    bw (KiB/s) : min=   25, max=34765, per=72.74%, avg=9163.50, stdev=11872.84
  write: io=79,632KiB, bw=5,517KiB/s, runt= 14779msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  275, avg= 2.55, stdev=15.62
    bw (KiB/s) : min=    0, max=17113, per=62.56%, avg=10147.00, stdev=7864.92
  cpu          : usr=9.60%, sys=4.65%, ctx=6995
  IO depths    : 1=0.8%, 2=52.1%, 4=28.1%, 8=19.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=39.3%, 4=15.6%, 10=22.0%, 20=4.9%, 50=2.6%, 100=7.4%
     lat (msec): 250=6.9%, 500=1.0%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4816
  read : io=100MiB, bw=6,028KiB/s, runt= 17394msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  545, avg=36.74, stdev=60.31
    bw (KiB/s) : min=    0, max=25676, per=82.94%, avg=10448.47, stdev=9134.13
  write: io=63,192KiB, bw=4,377KiB/s, runt= 14783msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  223, avg= 2.03, stdev=14.95
    bw (KiB/s) : min=    0, max=17498, per=58.96%, avg=9562.67, stdev=8861.78
  cpu          : usr=7.08%, sys=4.25%, ctx=9170
  IO depths    : 1=32.3%, 2=18.7%, 4=27.7%, 8=21.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=41.4%, 4=8.4%, 10=23.2%, 20=7.2%, 50=3.8%, 100=7.2%
     lat (msec): 250=8.1%, 500=0.6%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=211MiB, aggrb=12,598KiB/s, minb=0KiB/s, maxb=6,028KiB/s, mint=17394msec, maxt=17541msec
  WRITE: io=229MiB, aggrb=16,219KiB/s, minb=0KiB/s, maxb=5,517KiB/s, mint=17394msec, maxt=17541msec

Disk stats (read/write):
  cciss!c0d0: ios=4783/3362, merge=885/55092, ticks=42892/1452900, in_queue=1495780, util=98.27%
4.36user 2.00system 0:17.90elapsed 35%CPU (0avgtext+0avgdata 0maxresident)k
565912inputs+468344outputs (0major+2453minor)pagefaults 0swaps