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=16367, got signal=6
Threads: 2: [m_m] [18.8% done] [  7419/ 26329 kb/s] [eta 00m:13s]
Threads: 2: [m_m] [22.2% done] [  8561/     0 kb/s] [eta 00m:14s]
Threads: 2: [m_m] [29.4% done] [ 15009/ 24775 kb/s] [eta 00m:12s]
Threads: 2: [m_m] [33.3% done] [  9237/     0 kb/s] [eta 00m:12s]
Threads: 2: [m_m] [58.3% done] [  2111/ 52686 kb/s] [eta 00m:05s]
Threads: 2: [m_F] [61.5% done] [  1609/ 18427 kb/s] [eta 00m:05s]
Threads: 2: [F_F] [100.0% done] [   780/  8501 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] [71.4% done] [ 20947/     0 kb/s] [eta 00m:06s]
Threads: 2: [V_V] [94.1% done] [ 57478/     0 kb/s] [eta 00m:01s]
Threads: 1: [V__] [100.0% done] [ 53979/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=16366
  read : io=100MiB, bw=5,999KiB/s, runt= 17476msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  351, avg=44.47, stdev=81.54
    bw (KiB/s) : min=   15, max=47458, per=68.21%, avg=8280.13, stdev=12894.02
  write: io=81,020KiB, bw=5,656KiB/s, runt= 14667msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  164, avg= 1.93, stdev=11.59
    bw (KiB/s) : min=    0, max=11784, per=38.38%, avg=6623.25, stdev=4888.86
  cpu          : usr=9.82%, sys=4.17%, ctx=9497
  IO depths    : 1=25.1%, 2=34.8%, 4=23.9%, 8=16.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=45.6%, 4=15.1%, 10=20.3%, 20=4.0%, 50=1.0%, 100=3.3%
     lat (msec): 250=7.6%, 500=3.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16367
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=7.5%, 2=90.3%, 4=0.9%, 8=1.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=82.0%, 4=13.4%, 10=2.5%, 20=0.0%, 50=0.1%, 100=0.1%
     lat (msec): 250=1.1%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16368
  read : io=100MiB, bw=6,115KiB/s, runt= 17147msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  384, avg=41.82, stdev=72.44
    bw (KiB/s) : min=   30, max=39420, per=80.03%, avg=9714.89, stdev=11082.08
  write: io=66,236KiB, bw=4,624KiB/s, runt= 14668msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=  249, avg= 2.48, stdev=18.37
    bw (KiB/s) : min=    0, max=58613, per=115.74%, avg=19973.00, stdev=27016.92
  cpu          : usr=7.84%, sys=4.04%, ctx=7411
  IO depths    : 1=11.1%, 2=42.0%, 4=26.6%, 8=20.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.1%, 4=10.7%, 10=23.0%, 20=5.5%, 50=1.8%, 100=6.4%
     lat (msec): 250=7.3%, 500=2.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=202MiB, aggrb=12,139KiB/s, minb=0KiB/s, maxb=6,115KiB/s, mint=17147msec, maxt=17476msec
  WRITE: io=241MiB, aggrb=17,257KiB/s, minb=0KiB/s, maxb=5,656KiB/s, mint=17147msec, maxt=17476msec

Disk stats (read/write):
  cciss!c0d0: ios=4443/3713, merge=891/58069, ticks=43300/1846896, in_queue=1890200, util=97.74%
4.78user 1.86system 0:17.78elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k
538272inputs+494576outputs (0major+2459minor)pagefaults 0swaps