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] [8.1% done] [  6769/  6042 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [11.1% done] [  8297/  4384 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [13.9% done] [  6753/  6115 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [17.1% done] [  6867/  6684 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [19.4% done] [  6363/  6146 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.6% done] [  5520/  4990 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [23.7% done] [  8732/  1365 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  4664/  6359 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [27.5% done] [  6956/  2714 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [30.0% done] [  8496/  1787 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [32.5% done] [  8439/  2011 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [35.0% done] [  2578/  7750 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [36.6% done] [  8499/  1262 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [  3254/  7131 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.5% done] [  5493/  3184 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.9% done] [  6822/   979 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  3835/  5566 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.5% done] [  5111/  1540 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [48.8% done] [  3462/  4270 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  5831/  2210 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.1% done] [  5164/  3311 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.2% done] [  5408/   816 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [54.3% done] [  5160/  2344 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [54.2% done] [  4514/  3084 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [56.2% done] [  1637/  5676 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [56.0% done] [  6570/   442 kb/s] [eta 00m:22s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12903, got signal=6
Threads: 2: [_mm] [58.0% done] [  2706/  4246 kb/s] [eta 00m:21s]
Threads: 2: [_mm] [57.7% done] [    16/  9232 kb/s] [eta 00m:22s]
Threads: 2: [_Vm] [58.5% done] [  9837/   625 kb/s] [eta 00m:22s]
Threads: 2: [_Vm] [59.3% done] [ 16067/   824 kb/s] [eta 00m:22s]
Threads: 2: [_Vm] [60.0% done] [ 14990/   601 kb/s] [eta 00m:22s]
Threads: 1: [__m] [63.0% done] [ 10089/  3880 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [__m] [67.3% done] [  2592/  4933 kb/s] [eta 00m:17s]
fio: pid=12905, got signal=6

fio: (groupid=0): err= 0: pid=12903
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.0%, 4=15.0%, 8=83.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.1%, 10=1.6%, 20=3.3%, 50=16.9%, 100=10.4%
     lat (msec): 250=59.0%, 500=7.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12904
  read : io=100MiB, bw=3,088KiB/s, runt= 33830msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    2, max=  691, avg=110.30, stdev=104.20
    bw (KiB/s) : min=   31, max=21044, per=53.34%, avg=3582.59, stdev=4366.95
  write: io=46,592KiB, bw=1,545KiB/s, runt= 30865msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  719, avg=111.79, stdev=87.37
    bw (KiB/s) : min=    0, max= 9305, per=60.67%, avg=2645.74, stdev=2392.67
  cpu          : usr=0.04%, sys=0.40%, ctx=10709
  IO depths    : 1=0.5%, 2=1.7%, 4=27.3%, 8=70.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=1.0%, 10=1.9%, 20=15.2%, 50=28.1%, 100=5.7%
     lat (msec): 250=41.1%, 500=5.7%, 750=0.7%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12905
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=1.5%, 4=16.7%, 8=81.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.2%, 10=1.1%, 20=6.3%, 50=15.8%, 100=5.1%
     lat (msec): 250=61.0%, 500=7.0%, 750=1.9%, 1000=0.9%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=217MiB, aggrb=6,717KiB/s, minb=0KiB/s, maxb=3,088KiB/s, mint=0msec, maxt=33830msec
  WRITE: io=128MiB, aggrb=4,361KiB/s, minb=0KiB/s, maxb=1,545KiB/s, mint=0msec, maxt=33830msec

Disk stats (read/write):
  sda: ios=3861/2507, merge=780/414, ticks=78856/41444, in_queue=120300, util=98.25%
0.10user 0.49system 0:36.14elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2514minor)pagefaults 0swaps