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] [5.9% done] [  9646/  7774 kb/s] [eta 00m:48s]
Threads: 3: [mmm] [9.3% done] [  5744/ 11526 kb/s] [eta 00m:39s]
Threads: 3: [mmm] [11.4% done] [  7655/  6924 kb/s] [eta 00m:39s]
Threads: 3: [mmm] [14.3% done] [  8699/  6586 kb/s] [eta 00m:36s]
Threads: 3: [mmm] [17.1% done] [  7784/  5645 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [19.5% done] [  8256/  4844 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [22.0% done] [ 11312/  1136 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [24.4% done] [  4456/  8992 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [25.0% done] [  4020/  9380 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [27.3% done] [  5436/  7568 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [29.5% done] [  9184/  2304 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [32.6% done] [  8580/  3176 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [36.6% done] [  5336/  5976 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [37.2% done] [  3072/  7372 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [40.5% done] [  6020/  4904 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.9% done] [  4031/  5897 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [43.2% done] [  4528/  3564 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [46.5% done] [  4416/  4128 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.7% done] [  4612/  3104 kb/s] [eta 00m:23s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [47.8% done] [  4320/  2872 kb/s] [eta 00m:24s]
fio: pid=28280, got signal=6
Threads: 2: [m_V] [50.0% done] [  4716/  2404 kb/s] [eta 00m:23s]
Threads: 2: [m_V] [51.1% done] [ 16120/     0 kb/s] [eta 00m:23s]
Threads: 2: [m_V] [53.2% done] [ 12824/  2712 kb/s] [eta 00m:22s]
Threads: 2: [m_V] [53.1% done] [ 21644/   388 kb/s] [eta 00m:23s]
Threads: 1: [m__] [58.7% done] [  2918/  7880 kb/s] [eta 00m:19s]
Threads: 1: [m__] [63.6% done] [  3372/  4945 kb/s] [eta 00m:16s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28279, got signal=6

fio: (groupid=0): err= 0: pid=28279
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=3.8%, 4=41.0%, 8=54.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.3%, 4=0.1%, 10=3.5%, 20=6.5%, 50=34.4%, 100=12.9%
     lat (msec): 250=23.7%, 500=12.5%, 750=3.0%, 1000=0.9%, >=2000=0.6%
fio: (groupid=0): err= 0: pid=28280
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=1.7%, 4=33.4%, 8=64.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.5%, 10=1.1%, 20=3.9%, 50=18.5%, 100=25.9%
     lat (msec): 250=46.7%, 500=2.8%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28281
  read : io=100MiB, bw=3,909KiB/s, runt= 26710msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  359, avg=84.02, stdev=72.02
    bw (KiB/s) : min=  184, max=22372, per=56.70%, avg=4652.41, stdev=5192.54
  write: io=51,688KiB, bw=2,264KiB/s, runt= 23368msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  583, avg=97.99, stdev=86.87
    bw (KiB/s) : min=    0, max= 8777, per=52.57%, avg=3324.78, stdev=2812.91
  cpu          : usr=0.30%, sys=0.64%, ctx=6365
  IO depths    : 1=0.5%, 2=2.7%, 4=39.4%, 8=57.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=3.8%, 20=9.9%, 50=28.5%, 100=20.7%
     lat (msec): 250=31.6%, 500=4.6%, 750=0.3%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=209MiB, aggrb=8,206KiB/s, minb=0KiB/s, maxb=3,909KiB/s, mint=26710msec, maxt=26710msec
  WRITE: io=141MiB, aggrb=6,325KiB/s, minb=0KiB/s, maxb=2,264KiB/s, mint=26710msec, maxt=26710msec

Disk stats (read/write):
  sda: ios=3803/2828, merge=478/417, ticks=57608/59780, in_queue=117376, util=98.84%
0.26user 0.57system 0:29.68elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2505minor)pagefaults 0swaps