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] [8.8% done] [  7224/  6072 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [11.4% done] [ 10172/  2792 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [14.7% done] [  7094/  6133 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [17.6% done] [  2352/ 11872 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [19.4% done] [ 10536/  1540 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [22.2% done] [  7224/  3392 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [24.3% done] [  7248/  3720 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [26.3% done] [  4052/  6824 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [27.5% done] [  4892/  3736 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [30.0% done] [  4004/  6264 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [33.3% done] [  4164/  6356 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.9% done] [  2032/  8500 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [37.5% done] [  5964/  3760 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.0% done] [  7916/  1900 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.5% done] [  5336/  3144 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [43.9% done] [  2552/  5688 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.3% done] [  3696/  4912 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.6% done] [  3700/  3808 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  3752/  4544 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [51.2% done] [  5352/  1880 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.3% done] [  2720/  4152 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [54.5% done] [  3024/  3664 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [55.6% done] [  1516/  4540 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [57.8% done] [  3616/  3652 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [58.7% done] [  2372/  5004 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [59.6% done] [  5704/   148 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [59.2% done] [  6324/   344 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13176, got signal=6
Threads: 2: [_mm] [60.0% done] [  2256/  6856 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13177, got signal=6
Threads: 1: [__m] [62.0% done] [  5300/  1676 kb/s] [eta 00m:19s]
Threads: 1: [__m] [66.7% done] [  7236/   260 kb/s] [eta 00m:16s]
Threads: 1: [__V] [75.6% done] [ 13248/  1384 kb/s] [eta 00m:11s]
Threads: 1: [__V] [89.7% done] [ 21640/     0 kb/s] [eta 00m:04s]
fio: (groupid=0): err= 0: pid=13176
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.3%, 4=19.5%, 8=78.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=1.3%, 20=1.7%, 50=17.4%, 100=10.9%
     lat (msec): 250=62.1%, 500=5.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13177
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.1%, 4=16.4%, 8=82.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=1.0%, 20=2.4%, 50=18.9%, 100=2.2%
     lat (msec): 250=67.1%, 500=7.3%, 750=0.6%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13178
  read : io=100MiB, bw=2,929KiB/s, runt= 35797msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    5, max=  975, avg=90.60, stdev=108.74
    bw (KiB/s) : min=   27, max=23488, per=58.90%, avg=3741.39, stdev=5848.93
  write: io=52,028KiB, bw=1,611KiB/s, runt= 33069msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  911, avg=145.78, stdev=104.78
    bw (KiB/s) : min=    0, max= 6078, per=52.52%, avg=2226.48, stdev=1570.89
  cpu          : usr=0.02%, sys=0.25%, ctx=7104
  IO depths    : 1=0.6%, 2=3.3%, 4=31.7%, 8=64.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=6.4%, 20=9.6%, 50=31.0%, 100=3.5%
     lat (msec): 250=44.5%, 500=3.7%, 750=0.2%, 1000=0.8%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=217MiB, aggrb=6,352KiB/s, minb=0KiB/s, maxb=2,929KiB/s, mint=35797msec, maxt=35797msec
  WRITE: io=134MiB, aggrb=4,239KiB/s, minb=0KiB/s, maxb=1,611KiB/s, mint=35797msec, maxt=35797msec

Disk stats (read/write):
  sda: ios=4047/2500, merge=688/677, ticks=74360/44516, in_queue=118876, util=98.99%
0.06user 0.26system 0:36.20elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2513minor)pagefaults 0swaps