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=28443, got signal=6
Threads: 2: [mm_] [50.0% done] [ 12584/ 38222 kb/s] [eta 00m:03s]
Threads: 2: [mF_] [66.7% done] [ 11909/ 22993 kb/s] [eta 00m:02s]
Threads: 2: [FF_] [100.0% done] [   683/  8724 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [78.9% done] [ 47337/     0 kb/s] [eta 00m:04s]
Threads: 2: [VV_] [94.1% done] [ 60215/     0 kb/s] [eta 00m:01s]
Threads: 1: [_V_] [100.0% done] [ 56519/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=28441
  read : io=100MiB, bw=6,122KiB/s, runt= 17082msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  445, avg=26.06, stdev=50.84
    bw (KiB/s) : min=    9, max=38829, per=107.74%, avg=13559.64, stdev=14386.77
  write: io=84,664KiB, bw=6,104KiB/s, runt= 14203msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  199, avg= 1.31, stdev=11.42
    bw (KiB/s) : min=    0, max=60134, per=123.75%, avg=23345.25, stdev=26447.43
  cpu          : usr=9.44%, sys=5.50%, ctx=10516
  IO depths    : 1=43.4%, 2=13.0%, 4=26.8%, 8=16.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.7%, 4=7.6%, 10=20.8%, 20=6.3%, 50=6.4%, 100=6.0%
     lat (msec): 250=3.2%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28442
  read : io=100MiB, bw=6,092KiB/s, runt= 17209msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  232, avg=23.10, stdev=38.03
    bw (KiB/s) : min=   18, max=41098, per=126.49%, avg=15920.58, stdev=14447.72
  write: io=81,616KiB, bw=5,884KiB/s, runt= 14203msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   35, avg= 0.82, stdev= 2.04
    bw (KiB/s) : min=    0, max=60440, per=124.19%, avg=23428.33, stdev=32428.82
  cpu          : usr=10.13%, sys=5.04%, ctx=6839
  IO depths    : 1=1.0%, 2=55.7%, 4=26.1%, 8=17.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.3%, 4=16.4%, 10=20.3%, 20=4.4%, 50=7.4%, 100=6.0%
     lat (msec): 250=3.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28443
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=15.6%, 2=78.6%, 4=2.1%, 8=3.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=86.7%, 4=7.9%, 10=0.8%, 20=0.0%, 50=1.0%, 100=3.0%
     lat (msec): 250=0.5%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=207MiB, aggrb=12,586KiB/s, minb=0KiB/s, maxb=6,122KiB/s, mint=0msec, maxt=17209msec
  WRITE: io=256MiB, aggrb=18,865KiB/s, minb=0KiB/s, maxb=6,104KiB/s, mint=0msec, maxt=17209msec

Disk stats (read/write):
  cciss!c0d0: ios=4214/3560, merge=853/61730, ticks=26804/1569036, in_queue=1596720, util=97.91%
4.92user 2.32system 0:17.56elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
500952inputs+523376outputs (0major+2462minor)pagefaults 0swaps