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: [mFm] [50.0% done] [  8920/     0 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=24067, got signal=6
Threads: 2: [_Fm] [66.7% done] [   836/ 62532 kb/s] [eta 00m:02s]
Threads: 2: [_FF] [100.0% done] [     0/  2248 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VF] [66.7% done] [     0/     0 kb/s] [eta 00m:07s]
Threads: 2: [_VF] [78.9% done] [ 13620/     0 kb/s] [eta 00m:04s]
Threads: 2: [_VF] [84.2% done] [ 12168/     0 kb/s] [eta 00m:03s]
Threads: 2: [_VF] [94.4% done] [ 16708/     0 kb/s] [eta 00m:01s]
Threads: 2: [_VF] [100.0% done] [  9476/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [67.9% done] [ 17320/     0 kb/s] [eta 00m:09s]
Threads: 2: [_VV] [69.0% done] [ 26792/     0 kb/s] [eta 00m:09s]
Threads: 1: [__V] [87.5% done] [ 30117/     0 kb/s] [eta 00m:03s]
Threads: 1: [__V] [100.0% done] [ 33628/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=24067
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=86.7%, 4=3.4%, 8=9.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=86.7%, 4=1.9%, 10=0.1%, 20=0.0%, 50=0.2%, 100=4.1%
     lat (msec): 250=6.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24068
  read : io=100MiB, bw=5,048KiB/s, runt= 20770msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  316, avg=33.40, stdev=45.63
    bw (KiB/s) : min=    3, max=31539, per=138.66%, avg=13054.47, stdev=8757.71
  write: io=99,480KiB, bw=7,111KiB/s, runt= 14324msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  118, avg= 0.59, stdev= 5.15
    bw (KiB/s) : min=    0, max=119996, per=267.54%, avg=40035.33, stdev=69247.99
  cpu          : usr=4.01%, sys=2.29%, ctx=5752
  IO depths    : 1=0.9%, 2=52.7%, 4=31.4%, 8=15.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.1%, 4=2.0%, 10=12.8%, 20=17.6%, 50=8.6%, 100=4.6%
     lat (msec): 250=4.9%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24069
  read : io=100MiB, bw=4,470KiB/s, runt= 23451msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  647, avg=33.63, stdev=69.66
    bw (KiB/s) : min=    2, max=35888, per=136.50%, avg=12851.75, stdev=13899.60
  write: io=86,468KiB, bw=4,664KiB/s, runt= 18984msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  367, avg= 1.50, stdev=18.50
    bw (KiB/s) : min=    0, max=16704, per=55.81%, avg=8352.00, stdev=11811.51
  cpu          : usr=2.90%, sys=1.57%, ctx=5486
  IO depths    : 1=1.3%, 2=53.0%, 4=30.1%, 8=15.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.2%, 4=0.2%, 10=20.6%, 20=16.7%, 50=6.5%, 100=3.4%
     lat (msec): 250=4.0%, 500=1.2%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=211MiB, aggrb=9,415KiB/s, minb=0KiB/s, maxb=5,048KiB/s, mint=20770msec, maxt=23451msec
  WRITE: io=271MiB, aggrb=14,964KiB/s, minb=0KiB/s, maxb=7,111KiB/s, mint=20770msec, maxt=23451msec

Disk stats (read/write):
  sda: ios=2569/2711, merge=998/66427, ticks=53868/2399676, in_queue=2478672, util=98.65%
2.32user 1.08system 0:23.79elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2498minor)pagefaults 0swaps