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] [30.0% done] [ 18988/ 23373 kb/s] [eta 00m:07s]
Threads: 3: [mmm] [40.0% done] [ 15847/ 23681 kb/s] [eta 00m:06s]
Threads: 3: [mmF] [45.5% done] [  8419/ 12007 kb/s] [eta 00m:06s]
Threads: 3: [mmF] [54.5% done] [  2638/ 31072 kb/s] [eta 00m:05s]
Threads: 3: [mmF] [63.6% done] [  2157/ 18054 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=7897, got signal=6
Threads: 2: [m_F] [66.7% done] [  3047/   613 kb/s] [eta 00m:04s]
Threads: 2: [m_F] [64.3% done] [  1125/     0 kb/s] [eta 00m:05s]
Threads: 2: [m_F] [66.7% done] [   674/  1105 kb/s] [eta 00m:05s]
Threads: 2: [F_F] [100.0% done] [     0/  4258 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] [70.0% done] [   520/     0 kb/s] [eta 00m:06s]
Threads: 2: [V_V] [88.2% done] [ 56742/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 59465/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=7896
  read : io=100MiB, bw=6,239KiB/s, runt= 16805msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  475, avg=55.68, stdev=82.30
    bw (KiB/s) : min=   51, max=32956, per=51.66%, avg=7690.64, stdev=9673.14
  write: io=67,788KiB, bw=4,942KiB/s, runt= 14044msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  275, avg= 3.17, stdev=18.85
    bw (KiB/s) : min=    0, max=14355, per=43.05%, avg=6783.75, stdev=6353.31
  cpu          : usr=8.31%, sys=4.00%, ctx=5847
  IO depths    : 1=0.9%, 2=49.5%, 4=24.6%, 8=25.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=37.0%, 4=13.4%, 10=19.6%, 20=7.6%, 50=1.0%, 100=7.1%
     lat (msec): 250=11.2%, 500=3.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7897
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=63.0%, 4=5.2%, 8=31.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.5%, 4=11.1%, 10=1.8%, 20=0.3%, 50=7.0%, 100=17.5%
     lat (msec): 250=8.1%, 500=2.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7898
  read : io=100MiB, bw=6,262KiB/s, runt= 16745msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  223, avg=22.97, stdev=42.00
    bw (KiB/s) : min=   21, max=39024, per=103.04%, avg=15339.38, stdev=15334.90
  write: io=85,548KiB, bw=6,237KiB/s, runt= 14044msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  103, avg= 1.39, stdev= 7.85
    bw (KiB/s) : min=    0, max=59837, per=155.69%, avg=24533.50, stdev=25333.30
  cpu          : usr=11.06%, sys=4.49%, ctx=7496
  IO depths    : 1=18.7%, 2=41.7%, 4=25.8%, 8=13.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.3%, 4=14.7%, 10=19.2%, 20=3.6%, 50=1.0%, 100=4.3%
     lat (msec): 250=5.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=239MiB, aggrb=14,887KiB/s, minb=0KiB/s, maxb=6,262KiB/s, mint=16745msec, maxt=16805msec
  WRITE: io=211MiB, aggrb=15,758KiB/s, minb=0KiB/s, maxb=6,237KiB/s, mint=16745msec, maxt=16805msec

Disk stats (read/write):
  cciss!c0d0: ios=2601/3063, merge=3519/50898, ticks=166616/1360164, in_queue=1529008, util=98.28%
4.40user 1.84system 0:17.10elapsed 36%CPU (0avgtext+0avgdata 0maxresident)k
594576inputs+432288outputs (0major+2439minor)pagefaults 0swaps