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] [7.5% done] [  6468/  7044 kb/s] [eta 00m:37s]
Threads: 3: [mmm] [10.5% done] [ 10300/  3384 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [13.2% done] [ 11188/  2520 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [16.2% done] [  9540/  3400 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [19.4% done] [  6032/  7324 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [22.2% done] [  5416/  5228 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [25.0% done] [  8936/  3244 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [27.0% done] [  3896/  7068 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [29.7% done] [  8184/  2332 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [32.4% done] [  4884/  5168 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [34.2% done] [  6692/  2472 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [36.8% done] [  4912/  4824 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [38.5% done] [  7644/  2188 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.0% done] [  8692/   504 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.5% done] [  3908/  4456 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [43.9% done] [  4708/  3428 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.3% done] [  7944/   608 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.6% done] [  6672/     0 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  6092/  2056 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [51.2% done] [  5072/  2344 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [52.3% done] [  5876/   748 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [54.5% done] [  3440/  4180 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [55.6% done] [  2384/  4692 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [56.5% done] [  4612/  1560 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [57.4% done] [  3388/  3528 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [58.3% done] [  4304/  3576 kb/s] [eta 00m:20s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 3: [mmm] [58.0% done] [  6856/     0 kb/s] [eta 00m:21s]
fio: pid=5150, got signal=6
Threads: 2: [_mm] [61.2% done] [  2288/  5624 kb/s] [eta 00m:19s]
Threads: 2: [_mm] [63.3% done] [  4332/  3328 kb/s] [eta 00m:18s]
Threads: 2: [_Vm] [64.0% done] [  8172/  1136 kb/s] [eta 00m:18s]
Threads: 2: [_Vm] [64.7% done] [ 16460/   236 kb/s] [eta 00m:18s]
Threads: 2: [_Vm] [64.2% done] [ 14236/   124 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5152, got signal=6

fio: (groupid=0): err= 0: pid=5150
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.6%, 4=14.5%, 8=84.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.1%, 10=0.4%, 20=4.6%, 50=16.0%, 100=9.4%
     lat (msec): 250=64.5%, 500=4.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5151
  read : io=100MiB, bw=2,994KiB/s, runt= 34927msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    3, max=  811, avg=121.74, stdev=99.32
    bw (KiB/s) : min=   49, max=17022, per=46.32%, avg=3152.28, stdev=3833.54
  write: io=37,736KiB, bw=1,198KiB/s, runt= 32229msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    3, max=  643, avg=124.65, stdev=90.75
    bw (KiB/s) : min=    0, max= 6291, per=60.25%, avg=2150.36, stdev=2112.36
  cpu          : usr=0.08%, sys=0.15%, ctx=10369
  IO depths    : 1=0.2%, 2=0.8%, 4=22.9%, 8=76.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.5%, 10=1.7%, 20=9.8%, 50=26.5%, 100=7.5%
     lat (msec): 250=48.1%, 500=5.0%, 750=0.4%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5152
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.4%, 4=11.4%, 8=88.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.7%, 20=2.6%, 50=10.6%, 100=6.4%
     lat (msec): 250=67.1%, 500=9.2%, 750=1.9%, 1000=0.9%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=227MiB, aggrb=6,806KiB/s, minb=0KiB/s, maxb=2,994KiB/s, mint=0msec, maxt=34927msec
  WRITE: io=110MiB, aggrb=3,569KiB/s, minb=0KiB/s, maxb=1,198KiB/s, mint=0msec, maxt=34927msec

Disk stats (read/write):
  sda: ios=4042/2202, merge=884/441, ticks=82648/37784, in_queue=120664, util=99.48%
0.12user 0.32system 0:35.93elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2505minor)pagefaults 0swaps