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] [21.4% done] [ 14199/ 47606 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=21602, got signal=6
Threads: 2: [_mm] [44.4% done] [ 12011/ 42237 kb/s] [eta 00m:05s]
Threads: 2: [_mm] [62.5% done] [  7911/ 26459 kb/s] [eta 00m:03s]
Threads: 2: [_mF] [66.7% done] [   797/ 17010 kb/s] [eta 00m:03s]
Threads: 2: [_FF] [100.0% done] [     0/   557 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] [68.2% done] [   406/     0 kb/s] [eta 00m:07s]
Threads: 2: [_VV] [84.2% done] [ 57706/     0 kb/s] [eta 00m:03s]
Threads: 2: [_VV] [100.0% done] [ 55542/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=21602
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=86.4%, 4=3.5%, 8=9.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=72.1%, 4=13.6%, 10=2.7%, 20=0.8%, 50=0.5%, 100=5.3%
     lat (msec): 250=4.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21603
  read : io=100MiB, bw=5,956KiB/s, runt= 17605msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  371, avg=31.61, stdev=47.92
    bw (KiB/s) : min=    9, max=26457, per=91.08%, avg=11308.94, stdev=9361.38
  write: io=62,012KiB, bw=4,217KiB/s, runt= 15056msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  307, avg= 1.84, stdev=14.89
    bw (KiB/s) : min=    0, max=21093, per=80.22%, avg=12933.00, stdev=11327.61
  cpu          : usr=7.38%, sys=4.16%, ctx=6469
  IO depths    : 1=1.4%, 2=52.7%, 4=24.8%, 8=21.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.1%, 4=11.9%, 10=20.9%, 20=4.6%, 50=1.6%, 100=10.4%
     lat (msec): 250=5.8%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21604
  read : io=100MiB, bw=5,914KiB/s, runt= 17729msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  323, avg=26.48, stdev=40.29
    bw (KiB/s) : min=   17, max=38654, per=89.25%, avg=11082.73, stdev=13358.65
  write: io=82,840KiB, bw=5,634KiB/s, runt= 15055msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  187, avg= 1.70, stdev=12.16
    bw (KiB/s) : min=    0, max=58145, per=111.72%, avg=18010.00, stdev=24499.51
  cpu          : usr=9.57%, sys=4.17%, ctx=7511
  IO depths    : 1=18.0%, 2=36.4%, 4=26.8%, 8=18.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.7%, 4=16.0%, 10=15.5%, 20=4.7%, 50=6.8%, 100=7.4%
     lat (msec): 250=4.4%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=210MiB, aggrb=12,417KiB/s, minb=0KiB/s, maxb=5,956KiB/s, mint=17605msec, maxt=17729msec
  WRITE: io=231MiB, aggrb=16,121KiB/s, minb=0KiB/s, maxb=5,634KiB/s, mint=17605msec, maxt=17729msec

Disk stats (read/write):
  cciss!c0d0: ios=2997/3629, merge=14492/55506, ticks=214760/1512044, in_queue=1727356, util=98.16%
4.60user 2.03system 0:18.03elapsed 36%CPU (0avgtext+0avgdata 0maxresident)k
546392inputs+474160outputs (0major+2463minor)pagefaults 0swaps