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=23895, got signal=6
Threads: 2: [m_m] [42.9% done] [ 12231/127232 kb/s] [eta 00m:04s]
Threads: 2: [m_F] [44.4% done] [  2627/ 27744 kb/s] [eta 00m:05s]
Threads: 2: [m_F] [41.7% done] [   170/     0 kb/s] [eta 00m:07s]
Threads: 2: [m_F] [42.9% done] [    81/     0 kb/s] [eta 00m:08s]
Threads: 2: [m_F] [41.2% done] [   435/     0 kb/s] [eta 00m:10s]
Threads: 2: [m_F] [42.1% done] [   244/   288 kb/s] [eta 00m:11s]
Threads: 2: [m_F] [42.9% done] [    93/     0 kb/s] [eta 00m:12s]
Threads: 2: [m_F] [43.5% done] [   166/   105 kb/s] [eta 00m:13s]
Threads: 2: [m_F] [42.3% done] [   211/   154 kb/s] [eta 00m:15s]
Threads: 2: [m_V] [60.0% done] [  9419/ 26042 kb/s] [eta 00m:08s]
Threads: 2: [m_V] [61.9% done] [ 29192/     0 kb/s] [eta 00m:08s]
Threads: 2: [m_V] [60.9% done] [ 25678/     0 kb/s] [eta 00m:09s]
Threads: 1: [m__] [62.5% done] [ 29611/   256 kb/s] [eta 00m:09s]
Threads: 1: [F__] [100.0% done] [   760/  9400 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [78.3% done] [ 17596/     0 kb/s] [eta 00m:05s]
Threads: 1: [V__] [95.0% done] [ 21850/     0 kb/s] [eta 00m:01s]
Threads: 1: [V__] [100.0% done] [ 22904/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 21008/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=23894
  read : io=100MiB, bw=4,953KiB/s, runt= 21170msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 2937, avg=71.71, stdev=244.09
    bw (KiB/s) : min=    2, max=23795, per=56.08%, avg=5738.31, stdev=8536.81
  write: io=82,324KiB, bw=4,925KiB/s, runt= 17115msec
    slat (msec): min=    0, max=    4, avg= 0.00, stdev= 0.11
    clat (msec): min=    0, max= 1687, avg= 9.55, stdev=87.57
    bw (KiB/s) : min=    0, max=62365, per=72.38%, avg=11612.71, stdev=22658.14
  cpu          : usr=6.65%, sys=4.33%, ctx=9688
  IO depths    : 1=21.1%, 2=28.6%, 4=29.2%, 8=21.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=39.0%, 4=6.9%, 10=8.6%, 20=14.1%, 50=22.3%, 100=3.6%
     lat (msec): 250=1.9%, 500=1.4%, 750=0.8%, 1000=0.2%, >=2000=0.8%
fio: (groupid=0): err= 0: pid=23895
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=83.5%, 4=12.4%, 8=3.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=84.6%, 4=9.9%, 10=1.5%, 20=0.1%, 50=0.0%, 100=0.2%
     lat (msec): 250=2.1%, 500=1.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23896
  read : io=100MiB, bw=6,960KiB/s, runt= 15064msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  333, avg=25.08, stdev=43.52
    bw (KiB/s) : min=    5, max=30040, per=148.96%, avg=15241.83, stdev=12336.08
  write: io=90,224KiB, bw=7,951KiB/s, runt= 11619msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  181, avg= 0.88, stdev= 8.52
    bw (KiB/s) : min=    0, max=142057, per=339.39%, avg=54447.67, stdev=76614.75
  cpu          : usr=6.45%, sys=4.12%, ctx=9810
  IO depths    : 1=40.4%, 2=15.3%, 4=28.9%, 8=15.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.4%, 4=5.8%, 10=12.2%, 20=12.6%, 50=15.8%, 100=1.5%
     lat (msec): 250=2.0%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=207MiB, aggrb=10,232KiB/s, minb=0KiB/s, maxb=6,960KiB/s, mint=15064msec, maxt=21170msec
  WRITE: io=262MiB, aggrb=16,043KiB/s, minb=0KiB/s, maxb=7,951KiB/s, mint=15064msec, maxt=21170msec

Disk stats (read/write):
  cciss!c0d0: ios=4102/4011, merge=882/63004, ticks=51884/1419292, in_queue=1471168, util=96.83%
3.54user 1.93system 0:21.52elapsed 25%CPU (0avgtext+0avgdata 0maxresident)k
507560inputs+536432outputs (0major+2476minor)pagefaults 0swaps