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] [7.7% done] [  5722/  7542 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [10.5% done] [  7420/  6447 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [14.3% done] [  6325/  6522 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [17.1% done] [  6971/  5813 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [20.0% done] [  6793/  4824 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [22.2% done] [  7979/  2575 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [25.0% done] [  7309/  3820 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [27.0% done] [  8629/  2989 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [29.7% done] [  6986/  2859 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [31.6% done] [  4930/  5112 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [34.2% done] [  5454/  4671 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.9% done] [  6955/  2174 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [38.5% done] [  5454/  3568 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [40.0% done] [  8818/   716 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.5% done] [  5781/  2764 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [43.9% done] [  6451/  2839 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.3% done] [  6297/  1642 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.6% done] [  4029/  4470 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  3749/  4036 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [51.2% done] [  4151/  3321 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.3% done] [  3888/  2612 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [53.3% done] [  2936/  3764 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [55.6% done] [  3140/  3760 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [56.5% done] [  3700/  4640 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [57.4% done] [  3026/  3355 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [58.0% done] [  5932/   836 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [58.8% done] [  5780/   764 kb/s] [eta 00m:21s]
fio: pid=25379, got signal=6
Threads: 2: [_mm] [59.6% done] [  4752/  3848 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25380, got signal=6
Threads: 1: [__m] [62.7% done] [  1920/  6608 kb/s] [eta 00m:19s]
Threads: 1: [__m] [67.3% done] [  4724/  1888 kb/s] [eta 00m:16s]
Threads: 1: [__V] [77.3% done] [ 15556/     0 kb/s] [eta 00m:10s]
Threads: 1: [__V] [89.7% done] [ 18356/     0 kb/s] [eta 00m:04s]
fio: (groupid=0): err= 0: pid=25379
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=0.8%, 4=19.4%, 8=79.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.1%, 20=2.4%, 50=20.3%, 100=10.6%
     lat (msec): 250=59.5%, 500=6.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25380
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=1.9%, 4=17.3%, 8=80.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.0%, 10=1.6%, 20=4.6%, 50=17.3%, 100=2.2%
     lat (msec): 250=62.7%, 500=10.2%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25381
  read : io=100MiB, bw=2,930KiB/s, runt= 35615msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  704, avg=114.17, stdev=110.35
    bw (KiB/s) : min=   93, max=19554, per=48.06%, avg=3120.10, stdev=4430.31
  write: io=43,160KiB, bw=1,338KiB/s, runt= 33013msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  580, avg=135.68, stdev=81.44
    bw (KiB/s) : min=    0, max= 8609, per=56.84%, avg=2186.56, stdev=2156.39
  cpu          : usr=0.03%, sys=0.28%, ctx=6612
  IO depths    : 1=0.5%, 2=2.0%, 4=29.4%, 8=68.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=2.1%, 20=10.6%, 50=30.1%, 100=3.1%
     lat (msec): 250=45.2%, 500=7.0%, 750=1.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=221MiB, aggrb=6,492KiB/s, minb=0KiB/s, maxb=2,930KiB/s, mint=35615msec, maxt=35615msec
  WRITE: io=121MiB, aggrb=3,847KiB/s, minb=0KiB/s, maxb=1,338KiB/s, mint=35615msec, maxt=35615msec

Disk stats (read/write):
  sda: ios=4013/2291, merge=804/382, ticks=77872/39188, in_queue=117060, util=98.40%
0.10user 0.23system 0:36.45elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2507minor)pagefaults 0swaps