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] [9.7% done] [  4753/ 11961 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [14.3% done] [  7999/  8794 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [16.1% done] [  9873/  6400 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [18.8% done] [  5056/ 10291 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [21.2% done] [  8455/  4730 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [23.5% done] [  8239/  3410 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [27.3% done] [  6624/  6900 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [29.4% done] [  5428/  8172 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [31.4% done] [ 11590/   425 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [34.3% done] [  9212/  3410 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [38.2% done] [  4883/  7683 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [41.2% done] [  5521/  4671 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [42.9% done] [  5876/  5320 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [44.4% done] [  4348/  6270 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [45.9% done] [  5600/  4159 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [47.4% done] [  4848/  5127 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [47.5% done] [  5084/  2520 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [48.8% done] [  7916/     0 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  3796/  5214 kb/s] [eta 00m:22s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [51.1% done] [  3280/  4489 kb/s] [eta 00m:22s]
fio: pid=27700, got signal=6
Threads: 2: [mm_] [54.5% done] [  3127/  5635 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=27699, got signal=6
Threads: 1: [m__] [58.1% done] [  1488/  7360 kb/s] [eta 00m:18s]
Threads: 1: [m__] [63.4% done] [  2142/  5687 kb/s] [eta 00m:15s]
Threads: 1: [V__] [71.1% done] [  8849/   929 kb/s] [eta 00m:11s]
Threads: 1: [V__] [84.8% done] [ 22567/     0 kb/s] [eta 00m:05s]
Threads: 1: [V__] [100.0% done] [ 22760/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=27698
  read : io=100MiB, bw=3,583KiB/s, runt= 29261msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1519, avg=91.25, stdev=136.30
    bw (KiB/s) : min=  218, max=26607, per=57.55%, avg=4317.10, stdev=6121.99
  write: io=51,608KiB, bw=1,967KiB/s, runt= 26865msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  790, avg=98.02, stdev=109.16
    bw (KiB/s) : min=    0, max=10995, per=60.90%, avg=3350.78, stdev=2625.44
  cpu          : usr=0.34%, sys=0.45%, ctx=5930
  IO depths    : 1=1.5%, 2=6.5%, 4=46.4%, 8=45.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.7%, 4=0.0%, 10=5.1%, 20=18.6%, 50=33.2%, 100=11.0%
     lat (msec): 250=22.1%, 500=8.4%, 750=0.3%, 1000=0.0%, >=2000=0.3%
fio: (groupid=0): err= 0: pid=27699
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.0%, 2=3.8%, 4=29.9%, 8=65.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.0%, 10=0.7%, 20=5.4%, 50=12.4%, 100=24.3%
     lat (msec): 250=50.9%, 500=4.6%, 750=0.5%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=27700
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=3.4%, 4=36.2%, 8=59.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.0%, 10=0.9%, 20=5.3%, 50=14.3%, 100=30.8%
     lat (msec): 250=42.3%, 500=4.9%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=209MiB, aggrb=7,502KiB/s, minb=0KiB/s, maxb=3,583KiB/s, mint=0msec, maxt=29261msec
  WRITE: io=141MiB, aggrb=5,502KiB/s, minb=0KiB/s, maxb=1,967KiB/s, mint=0msec, maxt=29261msec

Disk stats (read/write):
  sda: ios=3775/2830, merge=538/283, ticks=52900/52932, in_queue=105832, util=98.51%
0.32user 0.43system 0:29.70elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2488minor)pagefaults 0swaps