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] [  9916/  6780 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [11.8% done] [ 12836/  3212 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [13.5% done] [  7336/  8676 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [16.7% done] [  3740/ 11360 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [20.0% done] [  9080/  4580 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [20.5% done] [  5536/  8404 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [22.5% done] [ 10416/  1052 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [25.6% done] [ 11604/   540 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [28.2% done] [  9688/  2404 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.8% done] [  7124/  6028 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [33.3% done] [  5792/  8196 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.9% done] [  7192/  3688 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [37.5% done] [  3756/  7908 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.0% done] [ 10388/   244 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.5% done] [  7591/  1789 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.9% done] [  7756/  1172 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.3% done] [  6028/  3992 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.6% done] [  3064/  5928 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  5096/  3400 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  1108/  6040 kb/s] [eta 00m:22s]
Threads: 3: [mVm] [52.3% done] [  2940/  6928 kb/s] [eta 00m:21s]
Threads: 3: [mVm] [53.3% done] [ 12344/  1757 kb/s] [eta 00m:21s]
Threads: 3: [mVm] [53.2% done] [ 12404/   176 kb/s] [eta 00m:22s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mVm] [54.2% done] [ 14716/   488 kb/s] [eta 00m:22s]
fio: pid=12677, got signal=6
Threads: 1: [m__] [60.0% done] [  8404/   280 kb/s] [eta 00m:18s]
Threads: 1: [m__] [65.1% done] [   825/  8239 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12675, got signal=6

fio: (groupid=0): err= 0: pid=12675
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.8%, 2=4.6%, 4=40.2%, 8=54.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.3%, 4=0.1%, 10=3.4%, 20=5.9%, 50=32.1%, 100=9.5%
     lat (msec): 250=30.3%, 500=13.7%, 750=2.8%, 1000=0.7%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12676
  read : io=100MiB, bw=3,919KiB/s, runt= 26749msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  343, avg=91.72, stdev=64.79
    bw (KiB/s) : min=  112, max=13685, per=54.41%, avg=4728.62, stdev=3753.02
  write: io=38,408KiB, bw=1,762KiB/s, runt= 22316msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  607, avg=83.42, stdev=80.45
    bw (KiB/s) : min=    0, max= 6818, per=50.93%, avg=2769.94, stdev=2364.25
  cpu          : usr=0.19%, sys=0.51%, ctx=5625
  IO depths    : 1=0.8%, 2=3.9%, 4=36.8%, 8=58.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=3.0%, 20=7.8%, 50=26.5%, 100=21.7%
     lat (msec): 250=37.7%, 500=1.9%, 750=0.3%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12677
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.1%, 4=28.5%, 8=69.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=0.4%, 20=3.0%, 50=12.9%, 100=22.5%
     lat (msec): 250=54.0%, 500=5.2%, 750=0.9%, 1000=0.6%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=222MiB, aggrb=8,690KiB/s, minb=0KiB/s, maxb=3,919KiB/s, mint=0msec, maxt=26749msec
  WRITE: io=116MiB, aggrb=5,439KiB/s, minb=0KiB/s, maxb=1,762KiB/s, mint=0msec, maxt=26749msec

Disk stats (read/write):
  sda: ios=3855/2464, merge=587/107, ticks=63052/77524, in_queue=140576, util=99.07%
0.20user 0.38system 0:29.54elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2475minor)pagefaults 0swaps