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] [7.9% done] [  4861/  8195 kb/s] [eta 00m:35s]
Threads: 3: [mmm] [10.5% done] [  6804/  4768 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [12.8% done] [  9804/  2852 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [16.2% done] [  9264/  3605 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [18.9% done] [  6804/  5692 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [21.1% done] [  6304/  3604 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [23.7% done] [  5176/  7072 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  3856/  7432 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.9% done] [  3376/  8156 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.8% done] [  5524/  3656 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.5% done] [  3340/  6068 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [35.0% done] [  6745/  3756 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [36.6% done] [  3321/  6651 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [38.1% done] [  5304/  4796 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [40.5% done] [  3912/  4948 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.9% done] [  6932/  1836 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [43.2% done] [  5652/  2724 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [45.5% done] [  5256/  3272 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [46.7% done] [  5916/  1444 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [48.9% done] [  2104/  5736 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [51.1% done] [  3100/  4412 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.2% done] [  3312/  2712 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [53.2% done] [  2920/  3904 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [54.2% done] [  5388/  1852 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [55.1% done] [  3804/  4008 kb/s] [eta 00m:22s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [54.9% done] [  6948/   188 kb/s] [eta 00m:23s]
fio: pid=5185, got signal=6
Threads: 2: [_mm] [56.9% done] [  4952/  1428 kb/s] [eta 00m:22s]
Threads: 2: [_mm] [57.7% done] [  3228/  4920 kb/s] [eta 00m:22s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5186, got signal=6
Threads: 1: [__m] [60.8% done] [  2570/  4364 kb/s] [eta 00m:20s]
Threads: 1: [__m] [65.3% done] [  6724/     0 kb/s] [eta 00m:17s]
Threads: 1: [__V] [70.2% done] [  9236/     0 kb/s] [eta 00m:14s]
Threads: 1: [__V] [81.0% done] [ 14616/     0 kb/s] [eta 00m:08s]
fio: (groupid=0): err= 0: pid=5185
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.9%, 4=20.0%, 8=77.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.2%, 4=0.0%, 10=0.8%, 20=2.9%, 50=20.7%, 100=8.0%
     lat (msec): 250=60.3%, 500=5.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5186
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=2.7%, 4=16.8%, 8=79.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.2%, 4=0.0%, 10=1.8%, 20=3.6%, 50=16.1%, 100=6.8%
     lat (msec): 250=61.9%, 500=7.1%, 750=0.7%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5187
  read : io=99MiB, bw=2,939KiB/s, runt= 35477msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  873, avg=125.00, stdev=119.54
    bw (KiB/s) : min=    5, max=16952, per=49.27%, avg=2894.21, stdev=3223.42
  write: io=30,104KiB, bw=923KiB/s, runt= 33377msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  799, avg=157.41, stdev=82.38
    bw (KiB/s) : min=    0, max= 4826, per=41.23%, avg=1683.94, stdev=1392.64
  cpu          : usr=0.06%, sys=0.35%, ctx=6598
  IO depths    : 1=0.3%, 2=1.1%, 4=23.7%, 8=74.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=1.1%, 20=3.2%, 50=34.9%, 100=7.0%
     lat (msec): 250=45.3%, 500=6.3%, 750=0.7%, 1000=0.6%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=199MiB, aggrb=5,874KiB/s, minb=0KiB/s, maxb=2,939KiB/s, mint=35477msec, maxt=35477msec
  WRITE: io=130MiB, aggrb=4,084KiB/s, minb=0KiB/s, maxb=923KiB/s, mint=35477msec, maxt=35477msec

Disk stats (read/write):
  sda: ios=3765/2390, merge=638/358, ticks=77180/39176, in_queue=116352, util=98.85%
0.10user 0.38system 0:36.05elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2510minor)pagefaults 0swaps