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] [8.6% done] [ 12425/  4544 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [10.5% done] [  4166/ 13512 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [15.2% done] [  6411/ 10200 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [17.1% done] [  9479/  4698 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [19.4% done] [ 10113/  1374 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.6% done] [  9070/  4923 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [23.7% done] [  5628/  6982 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [27.0% done] [ 10480/  1705 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.9% done] [  9512/  3551 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.8% done] [  3796/  8735 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.5% done] [  6498/  6112 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [35.0% done] [  6183/  5143 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [38.5% done] [  4611/  6860 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.0% done] [  8514/  1772 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [43.6% done] [  3257/  7089 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [43.9% done] [  3997/  4013 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.2% done] [  3268/  5888 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.6% done] [  6502/  1898 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.7% done] [  3213/  4828 kb/s] [eta 00m:23s]
Threads: 3: [mVm] [47.9% done] [ 13737/  1855 kb/s] [eta 00m:25s]
Threads: 3: [mVm] [49.0% done] [ 14580/   492 kb/s] [eta 00m:25s]
Threads: 3: [mVm] [49.0% done] [ 16900/   664 kb/s] [eta 00m:26s]
Threads: 2: [m_m] [51.0% done] [  6524/  3084 kb/s] [eta 00m:25s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11211, got signal=6
Threads: 1: [m__] [55.1% done] [  2788/  5432 kb/s] [eta 00m:22s]
Threads: 1: [m__] [60.9% done] [     0/ 10112 kb/s] [eta 00m:18s]
Threads: 1: [m__] [65.9% done] [  5772/  1908 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11209, got signal=6

fio: (groupid=0): err= 0: pid=11209
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=3.2%, 4=41.1%, 8=55.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.1%, 10=2.8%, 20=8.3%, 50=31.6%, 100=11.3%
     lat (msec): 250=27.7%, 500=12.4%, 750=3.4%, 1000=0.8%, >=2000=0.4%
fio: (groupid=0): err= 0: pid=11210
  read : io=100MiB, bw=4,159KiB/s, runt= 25206msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  451, avg=80.89, stdev=72.64
    bw (KiB/s) : min=   71, max=16609, per=55.79%, avg=4844.17, stdev=4779.39
  write: io=48,792KiB, bw=2,299KiB/s, runt= 21724msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  583, avg=81.83, stdev=78.37
    bw (KiB/s) : min=    0, max=10044, per=52.41%, avg=3510.19, stdev=2712.26
  cpu          : usr=0.27%, sys=0.36%, ctx=5249
  IO depths    : 1=0.9%, 2=5.7%, 4=44.2%, 8=49.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.7%, 4=0.1%, 10=3.9%, 20=15.1%, 50=25.8%, 100=20.0%
     lat (msec): 250=30.5%, 500=2.6%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11211
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=3.2%, 4=30.0%, 8=66.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=0.5%, 20=4.0%, 50=12.2%, 100=26.2%
     lat (msec): 250=48.9%, 500=5.9%, 750=0.5%, 1000=0.4%, >=2000=0.4%

Run status group 0 (all jobs):
   READ: io=209MiB, aggrb=8,683KiB/s, minb=0KiB/s, maxb=4,159KiB/s, mint=0msec, maxt=25206msec
  WRITE: io=139MiB, aggrb=6,698KiB/s, minb=0KiB/s, maxb=2,299KiB/s, mint=0msec, maxt=25206msec

Disk stats (read/write):
  sda: ios=3848/2773, merge=577/453, ticks=61800/94500, in_queue=156300, util=98.95%
0.25user 0.41system 0:29.74elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2488minor)pagefaults 0swaps