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] [13.6% done] [ 14630/  7480 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [18.2% done] [  9298/  9757 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [21.7% done] [ 10510/  9273 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 12548/  6902 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [30.4% done] [  8871/  8663 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [33.3% done] [ 16863/  1159 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [37.5% done] [ 14016/  3611 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [40.0% done] [ 12442/  4767 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [ 10343/  4580 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [48.0% done] [ 10270/  4010 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [50.0% done] [  7753/  6213 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.8% done] [ 10349/  2722 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  7187/  4380 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [  8456/  2308 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  8659/  1836 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7029/  2555 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [63.3% done] [  6691/   752 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15239, got signal=6
Threads: 2: [mm_] [64.5% done] [  3603/  2940 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15238, got signal=6
Threads: 1: [V__] [67.7% done] [  6617/   394 kb/s] [eta 00m:10s]
Threads: 1: [V__] [84.6% done] [ 23649/     0 kb/s] [eta 00m:04s]
fio: (groupid=0): err= 0: pid=15237
  read : io=100MiB, bw=4,653KiB/s, runt= 22464msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    4, max=  591, avg=73.97, stdev=54.02
    bw (KiB/s) : min=   80, max=23004, per=49.06%, avg=5625.78, stdev=5455.60
  write: io=31,640KiB, bw=1,544KiB/s, runt= 20975msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=   22, max=  595, avg=127.81, stdev=71.21
    bw (KiB/s) : min=    0, max= 6728, per=49.92%, avg=2117.40, stdev=2207.62
  cpu          : usr=0.25%, sys=0.59%, ctx=7528
  IO depths    : 1=0.1%, 2=0.5%, 4=12.9%, 8=86.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=2.3%, 20=9.4%, 50=19.7%, 100=30.6%
     lat (msec): 250=36.0%, 500=1.0%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15238
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=6.6%, 8=93.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.1%, 20=0.6%, 50=10.3%, 100=46.0%
     lat (msec): 250=41.5%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15239
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.8%, 8=93.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.9%, 50=9.1%, 100=47.9%
     lat (msec): 250=41.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=246MiB, aggrb=11,466KiB/s, minb=0KiB/s, maxb=4,653KiB/s, mint=0msec, maxt=22464msec
  WRITE: io=86,908KiB, aggrb=4,242KiB/s, minb=0KiB/s, maxb=1,544KiB/s, mint=0msec, maxt=22464msec

Disk stats (read/write):
  cciss!c0d0: ios=4678/1853, merge=698/197, ticks=52160/28380, in_queue=80536, util=98.24%
0.27user 0.57system 0:22.97elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
503240inputs+173848outputs (0major+2443minor)pagefaults 0swaps