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] [  6712/  9860 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [10.8% done] [  9841/  7146 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [11.6% done] [  9444/  5832 kb/s] [eta 00m:38s]
Threads: 3: [mmm] [15.4% done] [ 14352/  1112 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [17.5% done] [  8004/  6020 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [20.0% done] [  7776/  6208 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [23.1% done] [ 11080/  2036 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [25.6% done] [  9932/  2268 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [27.5% done] [ 11784/   800 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [29.3% done] [ 10212/  1824 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [30.2% done] [  4212/  7892 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [32.6% done] [  6636/  4644 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [34.9% done] [  8988/  1616 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [37.2% done] [  5912/  4140 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [39.5% done] [  6692/  3316 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [40.9% done] [  9164/     0 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [43.2% done] [  6116/  2820 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [44.4% done] [  6036/  2192 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [45.7% done] [  5860/  1584 kb/s] [eta 00m:25s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16031, got signal=6
Threads: 2: [m_m] [47.8% done] [  3656/  5212 kb/s] [eta 00m:24s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16032, got signal=6
Threads: 1: [m__] [51.1% done] [  4588/  4004 kb/s] [eta 00m:22s]
Threads: 1: [m__] [57.1% done] [  3776/  6852 kb/s] [eta 00m:18s]
Threads: 1: [m__] [64.1% done] [  5616/  3244 kb/s] [eta 00m:14s]
Threads: 1: [V__] [70.3% done] [  9360/     0 kb/s] [eta 00m:11s]
Threads: 1: [V__] [81.8% done] [ 19588/     0 kb/s] [eta 00m:06s]
fio: (groupid=0): err= 0: pid=16030
  read : io=100MiB, bw=3,714KiB/s, runt= 28186msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    3, max=  747, avg=99.67, stdev=106.55
    bw (KiB/s) : min=   97, max=20081, per=49.16%, avg=4186.16, stdev=4382.81
  write: io=31,144KiB, bw=1,210KiB/s, runt= 26341msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1083, avg=136.40, stdev=186.40
    bw (KiB/s) : min=    0, max=11304, per=51.27%, avg=2067.39, stdev=2641.67
  cpu          : usr=0.21%, sys=0.34%, ctx=8533
  IO depths    : 1=0.3%, 2=1.8%, 4=31.8%, 8=66.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.5%, 10=1.2%, 20=12.1%, 50=42.8%, 100=8.5%
     lat (msec): 250=21.0%, 500=11.2%, 750=1.5%, 1000=0.2%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=16031
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.8%, 4=24.8%, 8=73.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.3%, 10=1.0%, 20=3.9%, 50=15.4%, 100=25.2%
     lat (msec): 250=50.3%, 500=2.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16032
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.9%, 4=25.4%, 8=72.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.2%, 10=0.5%, 20=3.0%, 50=13.8%, 100=30.2%
     lat (msec): 250=49.0%, 500=2.1%, 750=0.3%, 1000=0.1%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=229MiB, aggrb=8,516KiB/s, minb=0KiB/s, maxb=3,714KiB/s, mint=0msec, maxt=28186msec
  WRITE: io=101MiB, aggrb=4,032KiB/s, minb=0KiB/s, maxb=1,210KiB/s, mint=0msec, maxt=28186msec

Disk stats (read/write):
  sda: ios=4140/2014, merge=716/187, ticks=60248/111920, in_queue=172164, util=98.77%
0.18user 0.42system 0:28.64elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2471minor)pagefaults 0swaps