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] [18.8% done] [ 17225/  1285 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [33.3% done] [ 13878/ 22501 kb/s] [eta 00m:08s]
Threads: 3: [mFm] [50.0% done] [  3258/ 68403 kb/s] [eta 00m:05s]
Threads: 3: [mFm] [54.5% done] [  2985/     0 kb/s] [eta 00m:05s]
Threads: 3: [mFm] [53.8% done] [  3019/  6846 kb/s] [eta 00m:06s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=21487, got signal=6
Threads: 2: [FF_] [100.0% done] [  1015/ 28058 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_] [78.9% done] [ 37457/     0 kb/s] [eta 00m:04s]
Threads: 2: [VV_] [100.0% done] [ 65210/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [ 65324/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=21485
  read : io=100MiB, bw=6,165KiB/s, runt= 17007msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  438, avg=41.02, stdev=67.93
    bw (KiB/s) : min=   10, max=34258, per=61.64%, avg=8873.74, stdev=11273.19
  write: io=76,236KiB, bw=5,436KiB/s, runt= 14359msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  155, avg= 1.02, stdev= 7.64
    bw (KiB/s) : min=    0, max= 7873, per=30.04%, avg=5022.33, stdev=4362.70
  cpu          : usr=8.82%, sys=4.59%, ctx=8484
  IO depths    : 1=19.4%, 2=36.7%, 4=25.8%, 8=18.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.8%, 4=11.9%, 10=22.5%, 20=5.2%, 50=1.0%, 100=3.6%
     lat (msec): 250=10.5%, 500=1.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21486
  read : io=100MiB, bw=6,100KiB/s, runt= 17178msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  257, avg=24.34, stdev=41.48
    bw (KiB/s) : min=    8, max=44021, per=103.01%, avg=14829.15, stdev=16908.04
  write: io=92,608KiB, bw=6,604KiB/s, runt= 14359msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=   89, avg= 0.53, stdev= 3.98
    bw (KiB/s) : min=    0, max=58948, per=142.13%, avg=23761.00, stdev=25838.14
  cpu          : usr=10.50%, sys=5.31%, ctx=9057
  IO depths    : 1=31.1%, 2=29.1%, 4=26.4%, 8=13.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.9%, 4=12.0%, 10=21.1%, 20=4.1%, 50=0.5%, 100=5.7%
     lat (msec): 250=5.2%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21487
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=46.1%, 2=29.9%, 4=4.4%, 8=19.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=69.1%, 4=6.4%, 10=0.3%, 20=0.2%, 50=0.8%, 100=8.2%
     lat (msec): 250=13.5%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=236MiB, aggrb=14,396KiB/s, minb=0KiB/s, maxb=6,165KiB/s, mint=0msec, maxt=17178msec
  WRITE: io=229MiB, aggrb=16,718KiB/s, minb=0KiB/s, maxb=6,604KiB/s, mint=0msec, maxt=17178msec

Disk stats (read/write):
  cciss!c0d0: ios=4836/3411, merge=1106/55088, ticks=43876/1453712, in_queue=1497796, util=96.93%
4.48user 2.14system 0:17.54elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k
588776inputs+468912outputs (0major+2453minor)pagefaults 0swaps