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] [50.0% done] [  9668/ 99365 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [57.1% done] [  2814/ 23595 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=10924, got signal=6
Threads: 2: [_FF] [100.0% done] [   513/ 23606 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: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [70.0% done] [ 27522/     0 kb/s] [eta 00m:06s]
Threads: 2: [_VV] [93.8% done] [ 64547/     0 kb/s] [eta 00m:01s]
Threads: 1: [__V] [100.0% done] [ 58611/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=10924
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=41.2%, 2=48.8%, 4=1.8%, 8=8.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=87.7%, 4=1.9%, 10=0.6%, 20=0.2%, 50=0.5%, 100=2.5%
     lat (msec): 250=5.4%, 500=1.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10925
  read : io=100MiB, bw=6,604KiB/s, runt= 15877msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  265, avg=17.91, stdev=34.67
    bw (KiB/s) : min=    1, max=47850, per=143.69%, avg=19353.30, stdev=16922.00
  write: io=81,080KiB, bw=6,123KiB/s, runt= 13559msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  153, avg= 1.20, stdev=10.31
    bw (KiB/s) : min=    0, max=11066, per=27.80%, avg=5533.00, stdev=7824.84
  cpu          : usr=7.33%, sys=3.88%, ctx=11734
  IO depths    : 1=50.7%, 2=14.5%, 4=22.6%, 8=12.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=54.9%, 4=12.0%, 10=18.4%, 20=3.7%, 50=2.8%, 100=5.9%
     lat (msec): 250=2.1%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=10926
  read : io=100MiB, bw=6,325KiB/s, runt= 16576msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  397, avg=21.07, stdev=52.37
    bw (KiB/s) : min=    2, max=51724, per=110.28%, avg=14854.27, stdev=16588.99
  write: io=93,304KiB, bw=7,046KiB/s, runt= 13559msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  159, avg= 0.72, stdev= 8.50
    bw (KiB/s) : min=    0, max=58900, per=162.55%, avg=32349.75, stdev=30527.47
  cpu          : usr=10.55%, sys=3.91%, ctx=11185
  IO depths    : 1=50.2%, 2=16.0%, 4=24.7%, 8=9.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=56.7%, 4=12.9%, 10=20.6%, 20=3.0%, 50=0.6%, 100=1.1%
     lat (msec): 250=4.5%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=213MiB, aggrb=13,469KiB/s, minb=0KiB/s, maxb=6,604KiB/s, mint=15877msec, maxt=16576msec
  WRITE: io=257MiB, aggrb=19,901KiB/s, minb=0KiB/s, maxb=7,046KiB/s, mint=15877msec, maxt=16576msec

Disk stats (read/write):
  cciss!c0d0: ios=4250/3912, merge=1093/61852, ticks=32472/1598244, in_queue=1631020, util=96.37%
4.34user 1.69system 0:16.89elapsed 35%CPU (0avgtext+0avgdata 0maxresident)k
529696inputs+527112outputs (0major+2458minor)pagefaults 0swaps