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] [9.4% done] [ 12165/   551 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [12.1% done] [  9857/  2752 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [15.2% done] [  3387/ 10815 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [17.6% done] [  7632/  5427 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [20.6% done] [  5718/  5978 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [22.9% done] [  6707/  4367 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [25.7% done] [  5608/  6230 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [27.8% done] [   484/ 11098 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [30.6% done] [  4674/  6258 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [32.4% done] [  5167/  5706 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [34.2% done] [  7723/  2351 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.9% done] [  1732/  9239 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [38.5% done] [  3103/  6226 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.0% done] [  3544/  5994 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.5% done] [  4411/  5017 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.0% done] [  2882/  5332 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.3% done] [  5903/  1839 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  3710/  3481 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  6368/  1398 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.3% done] [  3682/  4021 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [53.3% done] [  3686/  2812 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [54.3% done] [  5076/  1933 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [56.5% done] [  2666/  3816 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [57.4% done] [  6348/   803 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [57.1% done] [  4096/  3331 kb/s] [eta 00m:21s]
Threads: 3: [Vmm] [58.0% done] [ 16313/   110 kb/s] [eta 00m:21s]
Threads: 3: [Vmm] [57.7% done] [ 15423/   598 kb/s] [eta 00m:22s]
Threads: 2: [_mm] [58.5% done] [ 15371/   441 kb/s] [eta 00m:22s]
Threads: 2: [_mm] [60.4% done] [  3887/  4048 kb/s] [eta 00m:21s]
Threads: 2: [_mm] [61.1% done] [  2768/  4111 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16508, got signal=6
Threads: 1: [__m] [65.4% done] [  3993/  3217 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16509, got signal=6

fio: (groupid=0): err= 0: pid=16507
  read : io=100MiB, bw=3,358KiB/s, runt= 31134msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  355, avg=97.21, stdev=85.14
    bw (KiB/s) : min=   54, max=17359, per=56.01%, avg=3821.04, stdev=4191.54
  write: io=45,284KiB, bw=1,638KiB/s, runt= 28293msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  347, avg=134.89, stdev=61.69
    bw (KiB/s) : min=    0, max= 5566, per=45.15%, avg=2360.87, stdev=1620.67
  cpu          : usr=0.08%, sys=0.31%, ctx=5834
  IO depths    : 1=0.5%, 2=3.3%, 4=31.5%, 8=64.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=1.4%, 20=9.6%, 50=27.7%, 100=12.4%
     lat (msec): 250=46.2%, 500=2.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16508
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.0%, 4=18.9%, 8=78.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.9%, 4=0.0%, 10=0.7%, 20=3.7%, 50=18.3%, 100=5.7%
     lat (msec): 250=60.5%, 500=7.2%, 750=2.0%, 1000=0.4%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16509
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.8%, 4=19.6%, 8=78.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=0.5%, 20=5.3%, 50=16.2%, 100=4.6%
     lat (msec): 250=64.5%, 500=5.4%, 750=1.1%, 1000=1.8%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=203MiB, aggrb=6,822KiB/s, minb=0KiB/s, maxb=3,358KiB/s, mint=0msec, maxt=31134msec
  WRITE: io=141MiB, aggrb=5,229KiB/s, minb=0KiB/s, maxb=1,638KiB/s, mint=0msec, maxt=31134msec

Disk stats (read/write):
  sda: ios=3480/2729, merge=663/549, ticks=65444/51624, in_queue=117068, util=99.23%
0.12user 0.25system 0:35.33elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2511minor)pagefaults 0swaps