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] [9.1% done] [ 10908/  5308 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [12.9% done] [ 11076/  5172 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [16.1% done] [ 12476/  3348 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [17.1% done] [  7808/  5052 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [20.0% done] [  8572/  6972 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [22.2% done] [  6492/  4604 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [25.0% done] [ 12212/  1456 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.6% done] [  9820/  4376 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [31.4% done] [  7204/  6684 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [33.3% done] [ 11664/   876 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [36.1% done] [  8544/  3780 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [38.9% done] [  8792/  1540 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [40.5% done] [  5844/  5724 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [43.2% done] [  6520/  4540 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [43.6% done] [  4344/  6644 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.2% done] [  3484/  6700 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [47.5% done] [  3376/  4472 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [48.8% done] [  3964/  5500 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.5% done] [  5364/  3120 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [53.7% done] [  5188/  3092 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [53.5% done] [  5792/   200 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32184, got signal=6
Threads: 2: [m_m] [55.8% done] [  5964/   120 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32185, got signal=6
Threads: 1: [m__] [61.0% done] [  3516/  5100 kb/s] [eta 00m:16s]
Threads: 1: [m__] [65.0% done] [  3903/  3811 kb/s] [eta 00m:14s]
Threads: 1: [V__] [73.0% done] [ 12152/     0 kb/s] [eta 00m:10s]
Threads: 1: [V__] [84.8% done] [ 18860/     0 kb/s] [eta 00m:05s]
fio: (groupid=0): err= 0: pid=32183
  read : io=100MiB, bw=3,567KiB/s, runt= 29274msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  818, avg=92.21, stdev=97.15
    bw (KiB/s) : min=   80, max=19849, per=49.32%, avg=4063.57, stdev=4586.72
  write: io=37,628KiB, bw=1,426KiB/s, runt= 27017msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  825, avg=116.09, stdev=136.88
    bw (KiB/s) : min=    0, max= 9659, per=53.04%, avg=2184.54, stdev=2400.41
  cpu          : usr=0.20%, sys=0.37%, ctx=8434
  IO depths    : 1=0.4%, 2=2.8%, 4=39.2%, 8=57.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.4%, 10=4.6%, 20=13.7%, 50=33.4%, 100=10.5%
     lat (msec): 250=27.1%, 500=8.7%, 750=0.5%, 1000=0.3%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32184
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.8%, 4=26.7%, 8=71.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.1%, 10=0.5%, 20=2.7%, 50=14.6%, 100=28.8%
     lat (msec): 250=49.0%, 500=3.5%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32185
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.4%, 4=22.5%, 8=75.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.1%, 10=0.6%, 20=1.8%, 50=10.1%, 100=28.3%
     lat (msec): 250=53.4%, 500=4.5%, 750=0.5%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=230MiB, aggrb=8,240KiB/s, minb=0KiB/s, maxb=3,567KiB/s, mint=0msec, maxt=29274msec
  WRITE: io=106MiB, aggrb=4,119KiB/s, minb=0KiB/s, maxb=1,426KiB/s, mint=0msec, maxt=29274msec

Disk stats (read/write):
  sda: ios=4281/2207, merge=778/166, ticks=64080/73508, in_queue=137588, util=98.78%
0.25user 0.41system 0:29.68elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2479minor)pagefaults 0swaps