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] [ 10597/  4490 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [12.5% done] [ 15632/  1064 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [14.3% done] [ 14632/  1080 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [17.1% done] [ 13807/   788 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [20.0% done] [ 10240/  5002 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [22.2% done] [  6794/  4286 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [23.7% done] [  8773/  3965 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  6046/  6521 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [29.7% done] [  7899/  5038 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [31.6% done] [  6517/  5327 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [33.3% done] [  6898/  4185 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.0% done] [  7647/  3311 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [37.5% done] [  4437/  7497 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [39.0% done] [  8106/  2816 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [44.7% done] [  4335/  8472 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [47.4% done] [  1450/  9049 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.7% done] [  7111/   865 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.3% done] [  4591/  4961 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [52.5% done] [  4705/  3689 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [53.7% done] [  2868/  5859 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [54.8% done] [  5286/  1446 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27016, got signal=6
Threads: 2: [m_m] [57.1% done] [  3945/  2438 kb/s] [eta 00m:18s]
Threads: 2: [m_m] [59.5% done] [  2312/  5436 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27017, got signal=6
Threads: 1: [m__] [63.4% done] [   605/  9199 kb/s] [eta 00m:15s]
Threads: 1: [V__] [71.1% done] [  9793/     0 kb/s] [eta 00m:11s]
Threads: 1: [V__] [84.8% done] [ 20922/     0 kb/s] [eta 00m:05s]
fio: (groupid=0): err= 0: pid=27015
  read : io=100MiB, bw=3,577KiB/s, runt= 29186msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    2, max=  650, avg=90.54, stdev=97.40
    bw (KiB/s) : min=   99, max=24739, per=51.77%, avg=4132.70, stdev=5140.25
  write: io=42,628KiB, bw=1,617KiB/s, runt= 26985msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  738, avg=129.38, stdev=146.78
    bw (KiB/s) : min=    0, max= 6532, per=48.29%, avg=2230.64, stdev=2090.29
  cpu          : usr=0.25%, sys=0.52%, ctx=9502
  IO depths    : 1=0.4%, 2=2.1%, 4=37.0%, 8=60.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.8%, 10=2.5%, 20=16.2%, 50=34.3%, 100=9.9%
     lat (msec): 250=24.6%, 500=9.5%, 750=1.5%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=27016
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=2.5%, 4=30.7%, 8=66.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.3%, 10=0.7%, 20=4.2%, 50=16.1%, 100=31.1%
     lat (msec): 250=42.1%, 500=4.4%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=27017
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.3%, 4=22.3%, 8=76.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.2%, 10=0.8%, 20=4.2%, 50=11.4%, 100=25.6%
     lat (msec): 250=51.5%, 500=5.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=222MiB, aggrb=7,983KiB/s, minb=0KiB/s, maxb=3,577KiB/s, mint=0msec, maxt=29186msec
  WRITE: io=119MiB, aggrb=4,619KiB/s, minb=0KiB/s, maxb=1,617KiB/s, mint=0msec, maxt=29186msec

Disk stats (read/write):
  sda: ios=3981/2492, merge=614/281, ticks=60676/75568, in_queue=136240, util=98.47%
0.21user 0.51system 0:29.84elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2492minor)pagefaults 0swaps