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] [9.4% done] [  5064/ 11620 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [11.8% done] [  9608/  6256 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [14.3% done] [ 12268/  2788 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [16.7% done] [ 10864/  3856 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [19.4% done] [  7756/  5672 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.1% done] [  7784/  4292 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [23.7% done] [  9329/  1997 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [26.3% done] [  6596/  7588 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.2% done] [  9868/  2120 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.0% done] [  9820/  3680 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [32.5% done] [  4576/  7272 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.1% done] [  9032/  2520 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [36.6% done] [  5556/  5836 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [38.1% done] [  7344/  3600 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [41.5% done] [  6256/  4304 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.9% done] [  5297/  3532 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  6041/  3292 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.6% done] [  4777/  4300 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.7% done] [  2158/  5958 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [48.9% done] [  1851/  6207 kb/s] [eta 00m:23s]
Threads: 3: [mVm] [50.0% done] [  8865/  2500 kb/s] [eta 00m:23s]
Threads: 3: [mVm] [50.0% done] [ 15119/   165 kb/s] [eta 00m:24s]
Threads: 3: [mVm] [51.0% done] [ 13686/     0 kb/s] [eta 00m:24s]
Threads: 2: [m_m] [53.1% done] [  9282/   862 kb/s] [eta 00m:23s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=23609, got signal=6
Threads: 1: [m__] [57.4% done] [  1126/  7825 kb/s] [eta 00m:20s]
Threads: 1: [m__] [63.6% done] [  4119/  4816 kb/s] [eta 00m:16s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=23607, got signal=6

fio: (groupid=0): err= 0: pid=23607
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.3%, 2=6.3%, 4=40.2%, 8=52.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=2.1%, 4=0.0%, 10=0.2%, 20=5.9%, 50=33.0%, 100=11.0%
     lat (msec): 250=28.3%, 500=15.2%, 750=2.7%, 1000=1.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23608
  read : io=100MiB, bw=4,009KiB/s, runt= 26091msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  327, avg=92.20, stdev=63.71
    bw (KiB/s) : min=  128, max=16034, per=54.07%, avg=4555.66, stdev=3989.38
  write: io=40,164KiB, bw=1,793KiB/s, runt= 22932msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  448, avg=85.62, stdev=79.97
    bw (KiB/s) : min=    0, max= 7144, per=49.45%, avg=2920.80, stdev=2451.83
  cpu          : usr=0.21%, sys=0.41%, ctx=5205
  IO depths    : 1=0.9%, 2=4.1%, 4=40.2%, 8=54.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=0.3%, 20=7.6%, 50=31.1%, 100=19.9%
     lat (msec): 250=37.4%, 500=2.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23609
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.6%, 2=3.9%, 4=34.9%, 8=60.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.9%, 4=0.1%, 10=0.1%, 20=3.0%, 50=14.6%, 100=27.3%
     lat (msec): 250=47.5%, 500=4.6%, 750=1.0%, 1000=0.6%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=210MiB, aggrb=8,426KiB/s, minb=0KiB/s, maxb=4,009KiB/s, mint=0msec, maxt=26091msec
  WRITE: io=129MiB, aggrb=5,907KiB/s, minb=0KiB/s, maxb=1,793KiB/s, mint=0msec, maxt=26091msec

Disk stats (read/write):
  sda: ios=3757/2714, merge=437/233, ticks=62208/52072, in_queue=114280, util=98.85%
0.24user 0.39system 0:29.94elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2488minor)pagefaults 0swaps