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] [9.4% done] [ 11612/  6176 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [12.1% done] [  7228/  8728 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [14.7% done] [  6020/ 10852 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [18.8% done] [  6064/  9220 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [21.2% done] [  9477/  2858 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [22.9% done] [ 11472/  2340 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [25.0% done] [  8080/  4872 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [27.8% done] [  5602/  6538 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [29.7% done] [  6577/  4529 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [30.8% done] [  9381/  2059 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [33.3% done] [  9023/  2961 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.0% done] [  8932/  1992 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [38.5% done] [  8700/  2036 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [40.0% done] [  3064/  7943 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.5% done] [  4667/  5037 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.9% done] [  2989/  6959 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  4840/  3859 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.6% done] [  4663/  3717 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  5750/  2678 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.2% done] [  5517/  2359 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11965, got signal=6
Threads: 2: [mm_] [51.1% done] [  2886/  4438 kb/s] [eta 00m:22s]
Threads: 2: [mV_] [52.1% done] [ 14245/   429 kb/s] [eta 00m:23s]
Threads: 2: [mV_] [53.1% done] [ 15950/   338 kb/s] [eta 00m:23s]
Threads: 1: [m__] [55.1% done] [ 14052/  3111 kb/s] [eta 00m:22s]
Threads: 1: [m__] [62.2% done] [     0/ 10625 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [m__] [67.4% done] [     0/  7888 kb/s] [eta 00m:14s]
fio: pid=11963, got signal=6

fio: (groupid=0): err= 0: pid=11963
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.2%, 2=5.7%, 4=40.6%, 8=52.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=2.9%, 4=0.1%, 10=1.1%, 20=11.6%, 50=24.4%, 100=9.5%
     lat (msec): 250=32.5%, 500=14.7%, 750=1.8%, 1000=0.9%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11964
  read : io=100MiB, bw=3,925KiB/s, runt= 26702msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  294, avg=84.06, stdev=62.97
    bw (KiB/s) : min=  107, max=18480, per=55.50%, avg=4643.85, stdev=4895.33
  write: io=43,484KiB, bw=1,859KiB/s, runt= 23952msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  324, avg=95.94, stdev=76.66
    bw (KiB/s) : min=    0, max= 8714, per=52.12%, avg=2946.89, stdev=2338.43
  cpu          : usr=0.22%, sys=0.31%, ctx=6526
  IO depths    : 1=0.8%, 2=4.1%, 4=40.2%, 8=55.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=1.8%, 20=12.4%, 50=26.1%, 100=20.0%
     lat (msec): 250=35.6%, 500=3.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11965
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=3.0%, 4=31.3%, 8=65.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=0.5%, 20=4.0%, 50=13.1%, 100=29.2%
     lat (msec): 250=47.6%, 500=4.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=213MiB, aggrb=8,367KiB/s, minb=0KiB/s, maxb=3,925KiB/s, mint=0msec, maxt=26702msec
  WRITE: io=129MiB, aggrb=5,654KiB/s, minb=0KiB/s, maxb=1,859KiB/s, mint=0msec, maxt=26702msec

Disk stats (read/write):
  sda: ios=3742/2725, merge=534/210, ticks=63248/156172, in_queue=219420, util=98.90%
0.23user 0.32system 0:29.43elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2486minor)pagefaults 0swaps