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] [ 12101/  5831 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [11.1% done] [ 10260/  5396 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [13.9% done] [  9894/  4989 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [16.2% done] [  7825/  8224 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [19.4% done] [  6022/  6871 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.1% done] [  9719/  2434 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [21.4% done] [ 12499/   723 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [24.4% done] [  7643/  5558 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [27.5% done] [  9711/  2913 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [30.8% done] [  7204/  5916 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.5% done] [  4055/  9000 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.1% done] [  3287/  7220 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [36.6% done] [  7822/  3380 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [  7830/  3600 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.5% done] [  2466/  8651 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.9% done] [  5786/  4169 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.3% done] [  6639/  2324 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.6% done] [  5310/  3039 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  2157/  5428 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.2% done] [  6314/  2503 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26240, got signal=6
Threads: 2: [m_m] [52.3% done] [  2373/  5103 kb/s] [eta 00m:21s]
Threads: 2: [m_m] [58.5% done] [  1381/  8443 kb/s] [eta 00m:17s]
Threads: 2: [m_m] [62.5% done] [   654/  8009 kb/s] [eta 00m:15s]
Threads: 2: [m_V] [63.4% done] [ 10975/  1137 kb/s] [eta 00m:15s]
Threads: 2: [m_V] [64.3% done] [ 15498/     0 kb/s] [eta 00m:15s]
Threads: 2: [m_V] [65.1% done] [ 12637/     0 kb/s] [eta 00m:15s]
Threads: 1: [V__] [70.7% done] [  7895/  3384 kb/s] [eta 00m:12s]
Threads: 1: [V__] [85.7% done] [ 24267/     0 kb/s] [eta 00m:05s]
Threads: 1: [V__] [100.0% done] [ 20496/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=26239
  read : io=100MiB, bw=3,338KiB/s, runt= 31350msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1190, avg=109.76, stdev=154.07
    bw (KiB/s) : min=   98, max=26331, per=46.29%, avg=3945.40, stdev=5971.33
  write: io=49,808KiB, bw=1,759KiB/s, runt= 28981msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  743, avg=91.94, stdev=116.63
    bw (KiB/s) : min=    0, max= 9890, per=55.49%, avg=2606.50, stdev=2828.87
  cpu          : usr=0.14%, sys=0.41%, ctx=10180
  IO depths    : 1=0.6%, 2=4.7%, 4=39.3%, 8=55.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.1%, 4=1.0%, 10=3.7%, 20=21.2%, 50=30.1%, 100=10.4%
     lat (msec): 250=20.8%, 500=8.9%, 750=1.7%, 1000=0.5%, >=2000=0.3%
fio: (groupid=0): err= 0: pid=26240
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.5%, 4=30.2%, 8=68.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=1.2%, 10=1.1%, 20=4.6%, 50=14.6%, 100=21.7%
     lat (msec): 250=52.3%, 500=3.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26241
  read : io=100MiB, bw=3,689KiB/s, runt= 28421msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  395, avg=94.54, stdev=74.45
    bw (KiB/s) : min=   95, max=16928, per=49.71%, avg=4237.62, stdev=4160.80
  write: io=37,144KiB, bw=1,484KiB/s, runt= 25620msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  447, avg=89.15, stdev=76.55
    bw (KiB/s) : min=    0, max= 6617, per=51.98%, avg=2441.57, stdev=2133.86
  cpu          : usr=0.18%, sys=0.17%, ctx=9466
  IO depths    : 1=0.4%, 2=1.7%, 4=31.0%, 8=66.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=1.2%, 10=1.8%, 20=9.8%, 50=25.8%, 100=21.2%
     lat (msec): 250=35.2%, 500=4.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=255MiB, aggrb=8,524KiB/s, minb=0KiB/s, maxb=3,689KiB/s, mint=28421msec, maxt=31350msec
  WRITE: io=130MiB, aggrb=4,697KiB/s, minb=0KiB/s, maxb=1,759KiB/s, mint=28421msec, maxt=31350msec

Disk stats (read/write):
  sda: ios=4553/2796, merge=765/330, ticks=64160/53016, in_queue=117168, util=99.19%
0.21user 0.32system 0:31.69elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2480minor)pagefaults 0swaps