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] [  7140/  6073 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [11.1% done] [  6612/  7593 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [13.5% done] [  8743/  3422 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [16.2% done] [  6872/  6722 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [18.9% done] [  9141/  2410 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [21.1% done] [  8806/  2130 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [23.7% done] [  5637/  6171 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  7480/  4324 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.2% done] [  7992/  2376 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.0% done] [  5504/  3448 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [32.5% done] [  7508/  1828 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.1% done] [  7280/  3856 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [36.6% done] [  2872/  8016 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [  5664/  3288 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.5% done] [  5872/  2972 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [42.9% done] [  4636/  3336 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [44.2% done] [  3896/  5080 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [46.5% done] [  2336/  6140 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.7% done] [  3172/  3844 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [50.0% done] [  1916/  5824 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.3% done] [  2856/  4388 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [53.3% done] [  6324/   192 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [54.3% done] [  3276/  3516 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [55.3% done] [  2280/  5924 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [56.0% done] [  3012/  4952 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [55.8% done] [  6164/  1380 kb/s] [eta 00m:23s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=8395, got signal=6
Threads: 2: [m_m] [56.6% done] [  2752/  3392 kb/s] [eta 00m:23s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=8394, got signal=6
Threads: 1: [__m] [59.6% done] [  7212/   592 kb/s] [eta 00m:21s]
Threads: 1: [__m] [65.3% done] [  4140/  3288 kb/s] [eta 00m:17s]
Threads: 1: [__V] [70.2% done] [  8268/     0 kb/s] [eta 00m:14s]
Threads: 1: [__V] [81.0% done] [ 16700/     0 kb/s] [eta 00m:08s]
fio: (groupid=0): err= 0: pid=8394
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.4%, 4=19.3%, 8=79.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=1.4%, 20=3.5%, 50=16.7%, 100=9.0%
     lat (msec): 250=61.1%, 500=7.4%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8395
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=1.7%, 4=18.2%, 8=79.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.5%, 4=0.0%, 10=1.4%, 20=3.4%, 50=15.3%, 100=6.0%
     lat (msec): 250=64.2%, 500=9.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8396
  read : io=100MiB, bw=3,009KiB/s, runt= 34769msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    3, max=  951, avg=110.47, stdev=111.52
    bw (KiB/s) : min=   30, max=17806, per=53.48%, avg=3353.68, stdev=3551.02
  write: io=31,624KiB, bw=994KiB/s, runt= 32573msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1043, avg=144.28, stdev=128.02
    bw (KiB/s) : min=    0, max= 3624, per=33.65%, avg=1328.87, stdev=1127.45
  cpu          : usr=0.03%, sys=0.22%, ctx=6863
  IO depths    : 1=0.3%, 2=1.5%, 4=27.2%, 8=71.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.3%, 4=0.0%, 10=2.3%, 20=7.1%, 50=37.4%, 100=2.7%
     lat (msec): 250=41.7%, 500=6.9%, 750=0.5%, 1000=0.6%, >=2000=0.1%

Run status group 0 (all jobs):
   READ: io=208MiB, aggrb=6,271KiB/s, minb=0KiB/s, maxb=3,009KiB/s, mint=34769msec, maxt=34769msec
  WRITE: io=123MiB, aggrb=3,949KiB/s, minb=0KiB/s, maxb=994KiB/s, mint=34769msec, maxt=34769msec

Disk stats (read/write):
  sda: ios=3897/2277, merge=560/504, ticks=74300/37544, in_queue=111844, util=99.33%
0.13user 0.27system 0:35.15elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2504minor)pagefaults 0swaps