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=5002, got signal=6
Threads: 2: [mm_] [42.9% done] [  8144/ 93456 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5001, got signal=6
Threads: 1: [m__] [66.7% done] [  9695/ 43621 kb/s] [eta 00m:02s]
Threads: 1: [m__] [71.4% done] [  6607/     0 kb/s] [eta 00m:02s]
Threads: 1: [m__] [66.7% done] [   816/     0 kb/s] [eta 00m:03s]
Threads: 1: [m__] [70.0% done] [   560/     0 kb/s] [eta 00m:03s]
Threads: 1: [F__] [100.0% done] [   304/   101 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [69.6% done] [   950/     0 kb/s] [eta 00m:07s]
Threads: 1: [V__] [100.0% done] [ 54085/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=5000
  read : io=100MiB, bw=5,985KiB/s, runt= 17516msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  403, avg=32.30, stdev=61.49
    bw (KiB/s) : min=    0, max=60604, per=131.61%, avg=9881.12, stdev=16983.84
  write: io=72,096KiB, bw=4,588KiB/s, runt= 16088msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  215, avg= 4.77, stdev=14.72
    bw (KiB/s) : min=    0, max=24197, per=83.19%, avg=13275.50, stdev=11861.92
  cpu          : usr=7.67%, sys=3.61%, ctx=6057
  IO depths    : 1=2.3%, 2=34.0%, 4=37.0%, 8=26.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=23.3%, 4=10.9%, 10=27.6%, 20=16.9%, 50=11.6%, 100=4.5%
     lat (msec): 250=3.2%, 500=1.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5001
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=2.6%, 2=62.1%, 4=17.7%, 8=17.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=54.6%, 4=11.4%, 10=14.0%, 20=1.8%, 50=7.2%, 100=7.6%
     lat (msec): 250=3.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5002
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=86.1%, 4=9.8%, 8=3.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=82.4%, 4=10.3%, 10=2.1%, 20=0.2%, 50=0.4%, 100=0.7%
     lat (msec): 250=3.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=125MiB, aggrb=7,508KiB/s, minb=0KiB/s, maxb=5,985KiB/s, mint=0msec, maxt=17516msec
  WRITE: io=245MiB, aggrb=15,959KiB/s, minb=0KiB/s, maxb=4,588KiB/s, mint=0msec, maxt=17516msec

Disk stats (read/write):
  cciss!c0d0: ios=2879/4011, merge=525/58525, ticks=20636/1639616, in_queue=1662172, util=94.23%
3.49user 1.44system 0:17.87elapsed 27%CPU (0avgtext+0avgdata 0maxresident)k
326312inputs+501704outputs (0major+2475minor)pagefaults 0swaps