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] [ 16933/     0 kb/s] [eta 00m:07s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22597, got signal=6
Threads: 2: [F_m] [57.1% done] [  9701/ 95448 kb/s] [eta 00m:03s]
Threads: 2: [F_m] [71.4% done] [   922/ 15067 kb/s] [eta 00m:02s]
Threads: 2: [F_m] [66.7% done] [   691/     0 kb/s] [eta 00m:03s]
Threads: 2: [F_F] [100.0% done] [   569/  5137 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: [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] [83.3% done] [ 56710/     0 kb/s] [eta 00m:03s]
Threads: 2: [V_V] [100.0% done] [ 60001/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=22596
  read : io=100MiB, bw=6,151KiB/s, runt= 17040msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  210, avg=24.01, stdev=41.52
    bw (KiB/s) : min=    5, max=32189, per=119.07%, avg=15889.25, stdev=12773.93
  write: io=81,688KiB, bw=5,916KiB/s, runt= 14139msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  135, avg= 1.16, stdev= 7.01
    bw (KiB/s) : min=    0, max=59338, per=128.18%, avg=22768.00, stdev=31986.26
  cpu          : usr=9.51%, sys=5.07%, ctx=6362
  IO depths    : 1=1.1%, 2=58.6%, 4=27.0%, 8=13.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.0%, 4=18.2%, 10=20.2%, 20=4.1%, 50=0.7%, 100=4.9%
     lat (msec): 250=5.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22597
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=83.1%, 4=6.2%, 8=10.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=70.4%, 4=14.9%, 10=2.4%, 20=0.2%, 50=1.2%, 100=5.7%
     lat (msec): 250=4.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22598
  read : io=100MiB, bw=6,189KiB/s, runt= 16942msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  360, avg=35.85, stdev=60.82
    bw (KiB/s) : min=    6, max=37474, per=80.07%, avg=10683.89, stdev=12592.14
  write: io=78,564KiB, bw=5,689KiB/s, runt= 14139msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  255, avg= 2.57, stdev=17.00
    bw (KiB/s) : min=    0, max=60074, per=104.56%, avg=18571.50, stdev=27870.63
  cpu          : usr=10.06%, sys=4.23%, ctx=6379
  IO depths    : 1=1.2%, 2=50.8%, 4=27.3%, 8=20.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=36.1%, 4=16.4%, 10=22.2%, 20=4.5%, 50=7.1%, 100=6.1%
     lat (msec): 250=5.8%, 500=1.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=217MiB, aggrb=13,344KiB/s, minb=0KiB/s, maxb=6,189KiB/s, mint=16942msec, maxt=17040msec
  WRITE: io=240MiB, aggrb=17,762KiB/s, minb=0KiB/s, maxb=5,916KiB/s, mint=16942msec, maxt=17040msec

Disk stats (read/write):
  cciss!c0d0: ios=4570/3530, merge=1020/57841, ticks=35084/1513372, in_queue=1548740, util=98.30%
4.83user 1.99system 0:17.32elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k
550216inputs+490712outputs (0major+2453minor)pagefaults 0swaps