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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20997, got signal=6
Threads: 2: [m_F] [60.0% done] [  8147/136880 kb/s] [eta 00m:02s]
Threads: 2: [m_F] [66.7% done] [  1175/ 11982 kb/s] [eta 00m:02s]
Threads: 2: [m_F] [71.4% done] [  1182/   954 kb/s] [eta 00m:02s]
Threads: 2: [m_F] [66.7% done] [   606/     0 kb/s] [eta 00m:03s]
Threads: 2: [F_F] [100.0% done] [   601/  2997 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [72.2% done] [ 23352/     0 kb/s] [eta 00m:05s]
Threads: 2: [V_V] [93.3% done] [ 66321/     0 kb/s] [eta 00m:01s]
Threads: 2: [V_V] [100.0% done] [ 66329/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=20996
  read : io=100MiB, bw=6,731KiB/s, runt= 15576msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  375, avg=33.72, stdev=68.71
    bw (KiB/s) : min=   14, max=33957, per=61.64%, avg=8801.47, stdev=13257.84
  write: io=88,640KiB, bw=7,138KiB/s, runt= 12715msec
    slat (msec): min=    0, max=    5, avg= 0.00, stdev= 0.14
    clat (msec): min=    0, max=  235, avg= 2.40, stdev=17.21
    bw (KiB/s) : min=    0, max=59260, per=77.06%, avg=16676.17, stdev=22535.94
  cpu          : usr=11.56%, sys=5.11%, ctx=9837
  IO depths    : 1=37.7%, 2=22.7%, 4=25.4%, 8=14.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.8%, 4=12.8%, 10=20.3%, 20=4.4%, 50=3.4%, 100=2.8%
     lat (msec): 250=5.6%, 500=1.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20997
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=29.0%, 2=54.9%, 4=8.5%, 8=7.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=88.9%, 4=1.2%, 10=0.6%, 20=0.2%, 50=4.0%, 100=2.3%
     lat (msec): 250=2.0%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20998
  read : io=100MiB, bw=6,790KiB/s, runt= 15441msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  347, avg=17.39, stdev=41.27
    bw (KiB/s) : min=   10, max=39910, per=140.85%, avg=20112.38, stdev=15893.29
  write: io=90,100KiB, bw=7,272KiB/s, runt= 12687msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   91, avg= 0.48, stdev= 3.91
    bw (KiB/s) : min=    0, max=77045, per=213.14%, avg=46126.00, stdev=40711.46
  cpu          : usr=9.84%, sys=4.82%, ctx=10365
  IO depths    : 1=42.0%, 2=23.9%, 4=24.8%, 8=9.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=54.4%, 4=15.5%, 10=20.9%, 20=2.4%, 50=0.8%, 100=1.5%
     lat (msec): 250=4.2%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=212MiB, aggrb=14,279KiB/s, minb=0KiB/s, maxb=6,790KiB/s, mint=15441msec, maxt=15576msec
  WRITE: io=262MiB, aggrb=21,641KiB/s, minb=0KiB/s, maxb=7,272KiB/s, mint=15441msec, maxt=15576msec

Disk stats (read/write):
  cciss!c0d0: ios=4164/3692, merge=987/63366, ticks=32784/1436344, in_queue=1469820, util=98.08%
4.39user 1.92system 0:15.90elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k
512784inputs+537480outputs (0major+2455minor)pagefaults 0swaps