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] [27.3% done] [ 19049/ 20236 kb/s] [eta 00m:08s]
Threads: 3: [mmm] [33.3% done] [ 15030/  4185 kb/s] [eta 00m:08s]
Threads: 3: [mFm] [35.7% done] [ 10966/ 32768 kb/s] [eta 00m:09s]
Threads: 3: [mFF] [37.5% done] [  2517/ 29538 kb/s] [eta 00m:10s]
Threads: 3: [mFF] [43.8% done] [  2117/  7911 kb/s] [eta 00m:09s]
Threads: 3: [mFF] [53.3% done] [  1507/ 14547 kb/s] [eta 00m:07s]
Threads: 3: [FFF] [100.0% done] [     0/ 21928 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [VFF] [70.0% done] [    12/     0 kb/s] [eta 00m:06s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=23308, got signal=6
Threads: 2: [V_V] [83.3% done] [ 49115/     0 kb/s] [eta 00m:03s]
Threads: 2: [V_V] [100.0% done] [ 53300/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=23307
  read : io=100MiB, bw=6,284KiB/s, runt= 16686msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  391, avg=42.61, stdev=68.30
    bw (KiB/s) : min=    1, max=34106, per=72.35%, avg=9626.24, stdev=10247.00
  write: io=66,348KiB, bw=4,838KiB/s, runt= 14043msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.04
    clat (msec): min=    0, max=  242, avg= 1.56, stdev=13.93
    bw (KiB/s) : min=    0, max=56909, per=114.64%, avg=18941.50, stdev=26076.15
  cpu          : usr=7.58%, sys=3.81%, ctx=9949
  IO depths    : 1=36.9%, 2=15.5%, 4=28.1%, 8=19.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=45.9%, 4=8.7%, 10=22.1%, 20=5.2%, 50=0.9%, 100=6.4%
     lat (msec): 250=8.8%, 500=1.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23308
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=21.2%, 2=61.9%, 4=4.3%, 8=12.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=73.2%, 4=9.8%, 10=0.9%, 20=0.3%, 50=1.0%, 100=7.1%
     lat (msec): 250=7.2%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23309
  read : io=100MiB, bw=6,222KiB/s, runt= 16852msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  340, avg=30.94, stdev=51.06
    bw (KiB/s) : min=   26, max=34144, per=88.13%, avg=11727.21, stdev=10331.46
  write: io=72,036KiB, bw=5,252KiB/s, runt= 14043msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  148, avg= 1.14, stdev= 7.99
    bw (KiB/s) : min=    0, max=61136, per=134.46%, avg=22217.33, stdev=33817.21
  cpu          : usr=8.38%, sys=4.04%, ctx=6986
  IO depths    : 1=6.3%, 2=50.3%, 4=26.4%, 8=17.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.0%, 4=11.2%, 10=23.8%, 20=4.7%, 50=0.7%, 100=5.1%
     lat (msec): 250=8.3%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=214MiB, aggrb=13,306KiB/s, minb=0KiB/s, maxb=6,284KiB/s, mint=16852msec, maxt=16852msec
  WRITE: io=221MiB, aggrb=16,523KiB/s, minb=0KiB/s, maxb=5,252KiB/s, mint=16852msec, maxt=16852msec

Disk stats (read/write):
  cciss!c0d0: ios=4805/3160, merge=1124/53483, ticks=46676/1427432, in_queue=1474412, util=98.44%
4.15user 2.00system 0:17.18elapsed 35%CPU (0avgtext+0avgdata 0maxresident)k
580600inputs+453224outputs (0major+2454minor)pagefaults 0swaps