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] [8.8% done] [  3218/  1446 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [28.6% done] [ 12015/ 54048 kb/s] [eta 00m:10s]
Threads: 3: [mmm] [38.5% done] [ 15777/ 32279 kb/s] [eta 00m:08s]
Threads: 3: [mmF] [46.2% done] [  7557/ 43542 kb/s] [eta 00m:07s]
Threads: 3: [mmF] [46.7% done] [   630/   532 kb/s] [eta 00m:08s]
Threads: 3: [mmF] [47.1% done] [  1155/  1240 kb/s] [eta 00m:09s]
Threads: 3: [mmF] [47.4% done] [   964/   317 kb/s] [eta 00m:10s]
Threads: 3: [mmF] [47.6% done] [   475/     0 kb/s] [eta 00m:11s]
Threads: 3: [mmF] [47.8% done] [   610/   191 kb/s] [eta 00m:12s]
Threads: 3: [mmV] [50.0% done] [ 33089/ 22288 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13930, got signal=6
Threads: 2: [m_V] [52.0% done] [ 37457/  3392 kb/s] [eta 00m:12s]
Threads: 2: [m_V] [53.8% done] [ 22586/     0 kb/s] [eta 00m:12s]
Threads: 1: [F__] [100.0% done] [  4881/ 20524 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [94.4% done] [ 35883/     0 kb/s] [eta 00m:01s]
fio: (groupid=0): err= 0: pid=13929
  read : io=100MiB, bw=5,909KiB/s, runt= 17744msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1671, avg=62.19, stdev=163.00
    bw (KiB/s) : min=   49, max=53886, per=43.16%, avg=5839.21, stdev=12748.42
  write: io=67,064KiB, bw=4,200KiB/s, runt= 16347msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1351, avg=11.91, stdev=95.75
    bw (KiB/s) : min=    0, max=13401, per=24.55%, avg=3480.50, stdev=5370.46
  cpu          : usr=7.89%, sys=3.79%, ctx=6854
  IO depths    : 1=1.2%, 2=49.4%, 4=27.8%, 8=21.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=36.4%, 4=15.5%, 10=22.5%, 20=6.1%, 50=5.1%, 100=4.6%
     lat (msec): 250=5.6%, 500=2.0%, 750=1.1%, 1000=0.5%, >=2000=0.5%
fio: (groupid=0): err= 0: pid=13930
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=7.0%, 2=70.0%, 4=5.3%, 8=17.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=64.9%, 4=11.6%, 10=0.8%, 20=0.4%, 50=1.9%, 100=6.5%
     lat (msec): 250=9.3%, 500=1.0%, 750=1.3%, 1000=1.1%, >=2000=0.8%
fio: (groupid=0): err= 0: pid=13931
  read : io=100MiB, bw=7,383KiB/s, runt= 14201msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1049, avg=28.97, stdev=90.36
    bw (KiB/s) : min=    7, max=51722, per=95.87%, avg=12969.67, stdev=17313.42
  write: io=86,536KiB, bw=7,738KiB/s, runt= 11451msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  132, avg= 1.35, stdev= 8.07
    bw (KiB/s) : min=    0, max=59539, per=158.94%, avg=22536.25, stdev=26473.67
  cpu          : usr=13.07%, sys=4.96%, ctx=5724
  IO depths    : 1=1.4%, 2=60.9%, 4=25.7%, 8=12.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.7%, 4=17.8%, 10=22.3%, 20=4.2%, 50=1.5%, 100=3.0%
     lat (msec): 250=3.4%, 500=0.7%, 750=0.1%, 1000=0.2%, >=2000=0.1%

Run status group 0 (all jobs):
   READ: io=229MiB, aggrb=13,528KiB/s, minb=0KiB/s, maxb=7,383KiB/s, mint=14201msec, maxt=17744msec
  WRITE: io=221MiB, aggrb=14,179KiB/s, minb=0KiB/s, maxb=7,738KiB/s, mint=14201msec, maxt=17744msec

Disk stats (read/write):
  cciss!c0d0: ios=4809/3522, merge=1279/53069, ticks=60844/1523268, in_queue=1584528, util=95.53%
4.55user 1.91system 0:18.08elapsed 35%CPU (0avgtext+0avgdata 0maxresident)k
588688inputs+452760outputs (0major+2452minor)pagefaults 0swaps