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] [9.1% done] [ 13036/  3488 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [11.1% done] [ 10164/  6136 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [13.5% done] [  8552/  8184 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [17.1% done] [  5124/  9804 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [20.0% done] [  4756/  8348 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [23.5% done] [  5068/ 10548 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [25.7% done] [  9852/  1604 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [30.3% done] [  3820/  8884 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [33.3% done] [  2338/ 11775 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [35.3% done] [  8452/  3356 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [37.1% done] [  7488/  4556 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [40.0% done] [  8300/  3800 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [41.7% done] [  3788/  7596 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [43.2% done] [  3148/  6124 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [45.9% done] [  3952/  7328 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [46.2% done] [  3836/  4504 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [48.7% done] [  3876/  4344 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [50.0% done] [  2952/  5816 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.2% done] [  4528/  4216 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [52.4% done] [  4944/  1176 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15764, got signal=6
Threads: 2: [m_m] [53.5% done] [  3899/  3251 kb/s] [eta 00m:20s]
Threads: 2: [m_m] [57.1% done] [  2056/  5852 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15765, got signal=6
Threads: 1: [m__] [59.5% done] [  4608/  1113 kb/s] [eta 00m:17s]
Threads: 1: [m__] [65.0% done] [  7172/     0 kb/s] [eta 00m:14s]
Threads: 1: [V__] [75.0% done] [ 13592/  2140 kb/s] [eta 00m:09s]
Threads: 1: [V__] [90.3% done] [ 23028/     0 kb/s] [eta 00m:03s]
fio: (groupid=0): err= 0: pid=15763
  read : io=100MiB, bw=3,535KiB/s, runt= 29649msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  622, avg=75.37, stdev=93.70
    bw (KiB/s) : min=    1, max=25331, per=68.59%, avg=4774.82, stdev=6692.09
  write: io=58,456KiB, bw=2,206KiB/s, runt= 27129msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  689, avg=126.67, stdev=144.63
    bw (KiB/s) : min=    0, max=11023, per=51.20%, avg=3169.72, stdev=2832.96
  cpu          : usr=0.31%, sys=0.66%, ctx=6248
  IO depths    : 1=0.5%, 2=4.0%, 4=47.8%, 8=47.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=5.8%, 20=12.5%, 50=40.7%, 100=12.8%
     lat (msec): 250=17.2%, 500=8.3%, 750=1.8%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15764
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=3.5%, 4=39.2%, 8=56.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.0%, 10=1.4%, 20=3.0%, 50=17.4%, 100=28.3%
     lat (msec): 250=43.3%, 500=4.9%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15765
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.8%, 4=34.7%, 8=62.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=0.9%, 20=2.7%, 50=14.0%, 100=25.2%
     lat (msec): 250=49.3%, 500=7.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=197MiB, aggrb=6,961KiB/s, minb=0KiB/s, maxb=3,535KiB/s, mint=0msec, maxt=29649msec
  WRITE: io=160MiB, aggrb=6,191KiB/s, minb=0KiB/s, maxb=2,206KiB/s, mint=0msec, maxt=29649msec

Disk stats (read/write):
  sda: ios=3707/3078, merge=446/336, ticks=51416/111680, in_queue=163088, util=98.66%
0.25user 0.53system 0:30.14elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2486minor)pagefaults 0swaps