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] [9.1% done] [ 10876/  5352 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [11.8% done] [ 13736/  2188 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [15.2% done] [ 11788/  4512 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [17.6% done] [  3832/ 11520 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [20.6% done] [  6364/  7316 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [24.2% done] [  4604/  7628 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [26.5% done] [  7084/  6824 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [27.8% done] [ 10032/  1684 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [30.6% done] [ 11020/  2484 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [32.4% done] [  6308/  6240 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [34.2% done] [  4140/  8312 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.0% done] [  3800/  7692 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [37.5% done] [  7204/  4328 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [40.0% done] [  5828/  5672 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.5% done] [  5053/  5439 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.9% done] [  3863/  5419 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [47.5% done] [  5923/  3320 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [48.8% done] [  4529/  3804 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [51.2% done] [  4261/  3725 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [53.7% done] [  5789/  2205 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [56.1% done] [  2717/  6069 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32306, got signal=6
Threads: 2: [mV_] [55.8% done] [  3351/  2414 kb/s] [eta 00m:19s]
Threads: 2: [mV_] [56.8% done] [ 13611/   196 kb/s] [eta 00m:19s]
Threads: 2: [mV_] [56.5% done] [ 15852/   244 kb/s] [eta 00m:20s]
Threads: 1: [m__] [60.0% done] [  8290/  1870 kb/s] [eta 00m:18s]
Threads: 1: [m__] [66.7% done] [  4005/  4001 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32304, got signal=6

fio: (groupid=0): err= 0: pid=32304
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=4.1%, 4=42.5%, 8=52.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.8%, 4=0.0%, 10=0.0%, 20=5.0%, 50=32.4%, 100=11.7%
     lat (msec): 250=32.1%, 500=14.0%, 750=2.3%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32305
  read : io=100MiB, bw=3,848KiB/s, runt= 27129msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  371, avg=92.94, stdev=65.87
    bw (KiB/s) : min=   51, max=16595, per=50.85%, avg=4112.29, stdev=3831.95
  write: io=34,356KiB, bw=1,433KiB/s, runt= 24548msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  397, avg=98.96, stdev=77.58
    bw (KiB/s) : min=    0, max= 5888, per=42.87%, avg=2267.53, stdev=2004.16
  cpu          : usr=0.16%, sys=0.40%, ctx=5230
  IO depths    : 1=0.5%, 2=3.7%, 4=39.3%, 8=56.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=1.1%, 20=5.2%, 50=30.0%, 100=20.7%
     lat (msec): 250=38.7%, 500=3.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32306
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=3.7%, 4=37.3%, 8=58.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.1%, 10=0.2%, 20=2.6%, 50=15.2%, 100=24.3%
     lat (msec): 250=53.1%, 500=3.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=209MiB, aggrb=8,087KiB/s, minb=0KiB/s, maxb=3,848KiB/s, mint=0msec, maxt=27129msec
  WRITE: io=124MiB, aggrb=5,289KiB/s, minb=0KiB/s, maxb=1,433KiB/s, mint=0msec, maxt=27129msec

Disk stats (read/write):
  sda: ios=3911/2521, merge=498/333, ticks=62036/78040, in_queue=140072, util=98.78%
0.18user 0.54system 0:29.62elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2484minor)pagefaults 0swaps