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] [9.7% done] [  9528/  5655 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [11.1% done] [  5600/ 10208 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [13.9% done] [ 12984/  1960 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [18.8% done] [  5276/  9016 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [21.2% done] [  9336/  4184 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [23.5% done] [  7908/  5992 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [25.7% done] [  6268/  6428 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [27.0% done] [  4908/  6928 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.9% done] [ 11068/  2224 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [31.6% done] [ 12184/     0 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [33.3% done] [  8164/  2760 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.9% done] [  7968/  3152 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [36.6% done] [  4716/  5780 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [ 10492/     0 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.5% done] [  4892/  6228 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.9% done] [  9072/     0 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.2% done] [  6241/  2733 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.6% done] [  4682/  4155 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  5560/  1464 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.2% done] [  3536/  5688 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.3% done] [  4360/  2252 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [54.5% done] [  4108/  3735 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=359, got signal=6
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=360, got signal=6
Threads: 1: [m__] [58.1% done] [  3488/  3980 kb/s] [eta 00m:18s]
Threads: 1: [m__] [63.4% done] [  2956/  6964 kb/s] [eta 00m:15s]
Threads: 1: [V__] [71.1% done] [ 11020/     0 kb/s] [eta 00m:11s]
Threads: 1: [V__] [87.5% done] [ 22820/     0 kb/s] [eta 00m:04s]
fio: (groupid=0): err= 0: pid=358
  read : io=100MiB, bw=3,552KiB/s, runt= 29474msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  823, avg=98.73, stdev=108.56
    bw (KiB/s) : min=    3, max=24076, per=53.29%, avg=4388.16, stdev=5654.92
  write: io=43,948KiB, bw=1,647KiB/s, runt= 27309msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  631, avg=115.08, stdev=141.98
    bw (KiB/s) : min=    0, max=11481, per=66.96%, avg=2860.50, stdev=2661.72
  cpu          : usr=0.26%, sys=0.28%, ctx=5946
  IO depths    : 1=0.9%, 2=4.7%, 4=42.2%, 8=52.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.4%, 4=0.1%, 10=5.2%, 20=9.7%, 50=38.2%, 100=9.3%
     lat (msec): 250=24.0%, 500=10.3%, 750=1.4%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=359
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.7%, 4=29.0%, 8=69.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.6%, 20=2.1%, 50=11.5%, 100=23.8%
     lat (msec): 250=59.1%, 500=2.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=360
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=3.1%, 4=30.5%, 8=65.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.1%, 10=2.2%, 20=2.2%, 50=8.8%, 100=27.4%
     lat (msec): 250=55.5%, 500=2.1%, 750=0.8%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=231MiB, aggrb=8,235KiB/s, minb=0KiB/s, maxb=3,552KiB/s, mint=0msec, maxt=29474msec
  WRITE: io=111MiB, aggrb=4,272KiB/s, minb=0KiB/s, maxb=1,647KiB/s, mint=0msec, maxt=29474msec

Disk stats (read/write):
  sda: ios=4236/2214, merge=710/212, ticks=62956/168128, in_queue=231084, util=98.97%
0.24user 0.43system 0:29.99elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2482minor)pagefaults 0swaps