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] [  4892/ 10556 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [12.1% done] [  8052/  8656 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [15.2% done] [ 14900/   848 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [18.2% done] [  8572/  6684 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [20.6% done] [  9096/  3392 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [22.9% done] [  7133/  7306 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [25.7% done] [  7720/  5604 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [28.6% done] [ 11496/  1620 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [32.4% done] [  7352/  5816 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [34.3% done] [  9424/  2520 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [37.1% done] [  8397/  4847 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [38.9% done] [  8302/  4446 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [41.7% done] [  8314/   870 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [44.4% done] [  7825/  3087 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [45.9% done] [  7463/  2122 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [47.4% done] [  7613/  1020 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [50.0% done] [  6514/  1890 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [52.6% done] [  6112/  2142 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [53.8% done] [  5253/  2808 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [55.0% done] [  3359/  4726 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [57.5% done] [  5257/  2213 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16006, got signal=6
Threads: 2: [m_m] [60.0% done] [  4064/  3481 kb/s] [eta 00m:16s]
Threads: 2: [m_m] [61.9% done] [  5978/     0 kb/s] [eta 00m:16s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=16007, got signal=6
Threads: 1: [m__] [65.9% done] [  6494/  1083 kb/s] [eta 00m:14s]
Threads: 1: [V__] [73.7% done] [ 12181/     0 kb/s] [eta 00m:10s]
Threads: 1: [V__] [87.9% done] [ 20342/     0 kb/s] [eta 00m:04s]
fio: (groupid=0): err= 0: pid=16005
  read : io=99MiB, bw=3,541KiB/s, runt= 29457msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    1, max=  647, avg=100.73, stdev=94.90
    bw (KiB/s) : min=   53, max=21081, per=45.19%, avg=3730.33, stdev=4565.98
  write: io=37,544KiB, bw=1,406KiB/s, runt= 27333msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  574, avg=120.75, stdev=93.81
    bw (KiB/s) : min=    0, max= 6520, per=51.12%, avg=2041.06, stdev=1746.68
  cpu          : usr=0.24%, sys=0.43%, ctx=5197
  IO depths    : 1=0.5%, 2=3.2%, 4=45.0%, 8=51.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.2%, 10=0.9%, 20=4.2%, 50=36.7%, 100=17.0%
     lat (msec): 250=32.1%, 500=7.9%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16006
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=2.6%, 4=35.5%, 8=61.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.0%, 4=0.1%, 10=0.1%, 20=1.1%, 50=15.9%, 100=19.8%
     lat (msec): 250=57.5%, 500=3.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16007
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.9%, 4=28.9%, 8=68.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.0%, 10=0.2%, 20=1.5%, 50=7.6%, 100=23.7%
     lat (msec): 250=62.1%, 500=3.5%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=232MiB, aggrb=8,255KiB/s, minb=0KiB/s, maxb=3,541KiB/s, mint=0msec, maxt=29457msec
  WRITE: io=104MiB, aggrb=3,993KiB/s, minb=0KiB/s, maxb=1,406KiB/s, mint=0msec, maxt=29457msec

Disk stats (read/write):
  sda: ios=4492/1786, merge=457/295, ticks=70264/77528, in_queue=147788, util=98.60%
0.26user 0.41system 0:29.98elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2468minor)pagefaults 0swaps