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] [  7012/  5096 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [10.5% done] [  7232/  5160 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [13.5% done] [  3244/ 11372 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [16.2% done] [  5238/  8319 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [19.4% done] [  3326/  9706 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.1% done] [  6886/  3423 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [23.7% done] [  5239/  6749 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  3240/  8984 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.2% done] [  6360/  4096 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [31.6% done] [  5545/  5052 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [34.2% done] [  3420/  6864 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.9% done] [  4780/  4344 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [37.5% done] [  5736/  4668 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.0% done] [  5564/  3460 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.5% done] [  4668/  4484 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.9% done] [  4864/  3867 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [44.2% done] [  3844/  4388 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [46.5% done] [  5336/  1724 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.7% done] [  6476/  1268 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [50.0% done] [  3236/  4252 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.1% done] [  3407/  3419 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.2% done] [  7448/   896 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.1% done] [  4316/  3760 kb/s] [eta 00m:23s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [53.1% done] [  7544/   180 kb/s] [eta 00m:23s]
fio: pid=5162, got signal=6
Threads: 2: [_mm] [55.1% done] [  5428/  1460 kb/s] [eta 00m:22s]
Threads: 2: [_mm] [57.1% done] [  5048/  2230 kb/s] [eta 00m:21s]
Threads: 2: [_mm] [59.2% done] [  3840/  3504 kb/s] [eta 00m:20s]
Threads: 2: [_mm] [60.0% done] [  3496/  2624 kb/s] [eta 00m:20s]
Threads: 2: [_mV] [63.3% done] [  4152/  2788 kb/s] [eta 00m:18s]
Threads: 2: [_mV] [65.3% done] [ 12040/   836 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5163, got signal=6
Threads: 1: [__V] [85.0% done] [ 14876/  2080 kb/s] [eta 00m:06s]
Threads: 1: [__V] [97.2% done] [ 21744/     0 kb/s] [eta 00m:01s]
fio: (groupid=0): err= 0: pid=5162
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.2%, 4=20.1%, 8=78.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=1.1%, 20=2.5%, 50=20.9%, 100=8.8%
     lat (msec): 250=61.1%, 500=4.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5163
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=2.2%, 4=18.4%, 8=78.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=1.7%, 20=3.4%, 50=13.6%, 100=11.7%
     lat (msec): 250=58.2%, 500=9.2%, 750=1.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5164
  read : io=100MiB, bw=2,986KiB/s, runt= 35030msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  719, avg=103.45, stdev=100.25
    bw (KiB/s) : min=   69, max=24104, per=54.95%, avg=3473.64, stdev=4871.53
  write: io=48,876KiB, bw=1,603KiB/s, runt= 31221msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  639, avg=149.34, stdev=81.19
    bw (KiB/s) : min=    0, max= 5128, per=48.01%, avg=2196.35, stdev=1740.11
  cpu          : usr=0.07%, sys=0.21%, ctx=6769
  IO depths    : 1=0.5%, 2=2.0%, 4=26.2%, 8=71.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=2.4%, 20=7.0%, 50=27.4%, 100=12.8%
     lat (msec): 250=44.2%, 500=4.7%, 750=1.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=211MiB, aggrb=6,321KiB/s, minb=0KiB/s, maxb=2,986KiB/s, mint=35030msec, maxt=35030msec
  WRITE: io=136MiB, aggrb=4,575KiB/s, minb=0KiB/s, maxb=1,603KiB/s, mint=35030msec, maxt=35030msec

Disk stats (read/write):
  sda: ios=3907/2324, merge=596/650, ticks=74496/43156, in_queue=117652, util=98.85%
0.17user 0.24system 0:35.65elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2507minor)pagefaults 0swaps