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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=21484, got signal=6
Threads: 2
Threads: 2: [Fm_] [50.0% done] [  7042/ 48384 kb/s] [eta 00m:03s]
Threads: 2: [Fm_] [50.0% done] [   439/     0 kb/s] [eta 00m:04s]
Threads: 2: [Fm_] [50.0% done] [   178/    89 kb/s] [eta 00m:05s]
Threads: 2: [Fm_] [46.2% done] [   219/     0 kb/s] [eta 00m:07s]
Threads: 2: [Fm_] [46.7% done] [   288/    89 kb/s] [eta 00m:08s]
Threads: 2: [Fm_] [47.1% done] [   370/   394 kb/s] [eta 00m:09s]
Threads: 2: [Fm_] [47.4% done] [   223/     0 kb/s] [eta 00m:10s]
Threads: 2: [Fm_] [47.6% done] [   178/     0 kb/s] [eta 00m:11s]
Threads: 2: [Fm_] [47.8% done] [   162/     0 kb/s] [eta 00m:12s]
Threads: 2: [VF_] [92.3% done] [ 33280/ 30742 kb/s] [eta 00m:01s]
Threads: 2: [VF_] [100.0% done] [ 21350/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [70.0% done] [ 34477/     0 kb/s] [eta 00m:06s]
Threads: 1: [_V_] [100.0% done] [ 60101/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=21482
  read : io=100MiB, bw=7,222KiB/s, runt= 14515msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  670, avg=17.05, stdev=54.53
    bw (KiB/s) : min=    5, max=63299, per=132.64%, avg=17945.50, stdev=21521.05
  write: io=94,332KiB, bw=8,480KiB/s, runt= 11391msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   75, avg= 1.19, stdev= 4.58
    bw (KiB/s) : min=    0, max=61997, per=145.57%, avg=29231.25, stdev=25400.98
  cpu          : usr=13.92%, sys=5.87%, ctx=5593
  IO depths    : 1=1.5%, 2=62.0%, 4=25.9%, 8=10.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.1%, 4=19.7%, 10=21.9%, 20=3.8%, 50=4.8%, 100=1.3%
     lat (msec): 250=1.6%, 500=0.5%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21483
  read : io=100MiB, bw=6,759KiB/s, runt= 15486msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1979, avg=49.22, stdev=209.70
    bw (KiB/s) : min=   35, max=58063, per=58.89%, avg=7967.59, stdev=14635.49
  write: io=69,768KiB, bw=5,261KiB/s, runt= 13579msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1339, avg=12.63, stdev=102.30
    bw (KiB/s) : min=    0, max=43696, per=50.70%, avg=10180.67, stdev=17787.92
  cpu          : usr=6.90%, sys=4.55%, ctx=5555
  IO depths    : 1=2.9%, 2=39.6%, 4=38.2%, 8=19.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=31.0%, 4=14.7%, 10=37.1%, 20=4.1%, 50=2.9%, 100=6.3%
     lat (msec): 250=1.6%, 500=0.3%, 750=0.2%, 1000=0.3%, >=2000=1.3%
fio: (groupid=0): err= 0: pid=21484
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.5%, 2=85.7%, 4=11.4%, 8=1.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=70.8%, 4=27.2%, 10=1.3%, 20=0.2%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=200MiB, aggrb=13,529KiB/s, minb=0KiB/s, maxb=7,222KiB/s, mint=0msec, maxt=15486msec
  WRITE: io=260MiB, aggrb=20,080KiB/s, minb=0KiB/s, maxb=8,480KiB/s, mint=0msec, maxt=15486msec

Disk stats (read/write):
  cciss!c0d0: ios=4019/3853, merge=725/62711, ticks=31920/1427736, in_queue=1459652, util=95.64%
4.64user 1.97system 0:15.85elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
500688inputs+532592outputs (0major+2452minor)pagefaults 0swaps