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] [ 14284/  2331 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [11.1% done] [ 12421/  4001 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [14.7% done] [ 10716/  6006 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [16.7% done] [ 13473/     0 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [18.9% done] [ 14867/     0 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [21.1% done] [  5018/  8929 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [22.5% done] [  3064/  9641 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [25.6% done] [ 10968/  2197 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [28.2% done] [  8239/  3891 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [29.3% done] [  5372/  6392 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [31.7% done] [ 11646/     0 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [34.1% done] [  6526/  3840 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [35.7% done] [  6537/  3993 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [38.1% done] [  7234/  2319 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [40.5% done] [  5368/  4328 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [42.9% done] [  6963/  1811 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  6293/  2796 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.7% done] [  5009/  4218 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [48.9% done] [  3792/  3962 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [50.0% done] [  3335/  4178 kb/s] [eta 00m:23s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20871, got signal=6
Threads: 2: [mm_] [52.2% done] [  5553/  1335 kb/s] [eta 00m:22s]
Threads: 2: [mV_] [53.2% done] [  6246/  3064 kb/s] [eta 00m:22s]
Threads: 2: [mV_] [54.2% done] [ 12053/     0 kb/s] [eta 00m:22s]
Threads: 1: [m__] [55.1% done] [ 11028/   316 kb/s] [eta 00m:22s]
Threads: 1: [m__] [62.2% done] [     0/  9828 kb/s] [eta 00m:17s]
Threads: 1: [m__] [65.9% done] [  6518/   556 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20869, got signal=6

fio: (groupid=0): err= 0: pid=20869
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=2.9%, 4=36.4%, 8=60.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.3%, 10=1.9%, 20=7.3%, 50=29.9%, 100=10.9%
     lat (msec): 250=30.8%, 500=15.3%, 750=2.1%, 1000=0.5%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20870
  read : io=100MiB, bw=3,911KiB/s, runt= 26801msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    3, max=  327, avg=100.86, stdev=64.35
    bw (KiB/s) : min=  163, max=13637, per=45.52%, avg=4120.04, stdev=3170.40
  write: io=25,228KiB, bw=1,054KiB/s, runt= 24497msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  338, avg=81.42, stdev=66.42
    bw (KiB/s) : min=    0, max= 3237, per=34.01%, avg=1357.17, stdev=923.87
  cpu          : usr=0.22%, sys=0.28%, ctx=5103
  IO depths    : 1=0.5%, 2=2.6%, 4=35.6%, 8=61.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=1.0%, 20=9.5%, 50=23.3%, 100=19.2%
     lat (msec): 250=45.0%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20871
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=3.4%, 4=33.5%, 8=62.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.1%, 10=0.4%, 20=3.2%, 50=11.5%, 100=32.3%
     lat (msec): 250=48.9%, 500=2.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=231MiB, aggrb=9,051KiB/s, minb=0KiB/s, maxb=3,911KiB/s, mint=0msec, maxt=26801msec
  WRITE: io=95,472KiB, aggrb=3,990KiB/s, minb=0KiB/s, maxb=1,054KiB/s, mint=0msec, maxt=26801msec

Disk stats (read/write):
  sda: ios=4206/2155, merge=514/199, ticks=68436/38016, in_queue=106452, util=99.22%
0.22user 0.32system 0:29.70elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2481minor)pagefaults 0swaps