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] [8.3% done] [ 11886/     0 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [11.4% done] [  9401/  3398 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [13.9% done] [ 11586/  1307 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [16.2% done] [  9349/  2752 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [19.4% done] [ 10017/  2494 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [21.6% done] [  9115/  1586 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [24.3% done] [  4324/  7967 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [27.0% done] [  9022/  2526 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.2% done] [  7546/  2126 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.8% done] [  7321/  3131 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.5% done] [  6234/  3379 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.1% done] [  5230/  4060 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [36.6% done] [  7770/  2225 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [  6821/  3245 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.5% done] [  8574/     0 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [42.9% done] [  6524/  1600 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  4316/  3141 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.5% done] [  3595/  4304 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [48.8% done] [  3119/  4962 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  4348/  3217 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [52.2% done] [  5226/  1579 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [54.3% done] [  1182/  6590 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [55.3% done] [  2453/  3973 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [57.4% done] [  2780/  4107 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [58.3% done] [   791/  6730 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [59.2% done] [  2126/  4501 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] [58.8% done] [  3551/  2716 kb/s] [eta 00m:21s]
fio: pid=4511, got signal=6
Threads: 2: [_mm] [62.0% done] [  5663/  2252 kb/s] [eta 00m:19s]
Threads: 2: [_mm] [61.5% done] [  2244/  4509 kb/s] [eta 00m:20s]
Threads: 2: [_Vm] [62.3% done] [ 14288/    23 kb/s] [eta 00m:20s]
Threads: 2: [_Vm] [63.0% done] [ 16104/     0 kb/s] [eta 00m:20s]
Threads: 1: [__m] [64.8% done] [ 11783/   488 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=4513, got signal=6

fio: (groupid=0): err= 0: pid=4511
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=3.4%, 4=21.7%, 8=74.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.2%, 4=0.0%, 10=0.3%, 20=5.0%, 50=18.7%, 100=6.7%
     lat (msec): 250=63.0%, 500=4.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4512
  read : io=100MiB, bw=3,004KiB/s, runt= 34890msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  851, avg=112.33, stdev=101.58
    bw (KiB/s) : min=   38, max=17480, per=47.80%, avg=3338.28, stdev=4087.31
  write: io=39,284KiB, bw=1,247KiB/s, runt= 32237msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  731, avg=118.54, stdev=85.01
    bw (KiB/s) : min=    0, max= 5201, per=49.25%, avg=1695.75, stdev=1499.69
  cpu          : usr=0.08%, sys=0.21%, ctx=5408
  IO depths    : 1=0.9%, 2=4.4%, 4=31.8%, 8=62.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.3%, 4=0.0%, 10=1.1%, 20=10.9%, 50=30.8%, 100=4.0%
     lat (msec): 250=46.2%, 500=5.1%, 750=0.3%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4513
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=1.0%, 4=18.1%, 8=80.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.8%, 4=0.0%, 10=0.1%, 20=2.6%, 50=14.3%, 100=3.4%
     lat (msec): 250=68.7%, 500=6.9%, 750=1.4%, 1000=1.3%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=232MiB, aggrb=6,984KiB/s, minb=0KiB/s, maxb=3,004KiB/s, mint=0msec, maxt=34890msec
  WRITE: io=106MiB, aggrb=3,443KiB/s, minb=0KiB/s, maxb=1,247KiB/s, mint=0msec, maxt=34890msec

Disk stats (read/write):
  sda: ios=4026/2398, merge=913/290, ticks=86748/37260, in_queue=124008, util=99.27%
0.14user 0.34system 0:36.32elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2508minor)pagefaults 0swaps