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: [mmF] [14.3% done] [  8850/  1052 kb/s] [eta 00m:18s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14078, got signal=6
Threads: 2: [_mF] [26.7% done] [  2211/ 25275 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 2: [_FF] [100.0% done] [   299/ 61471 kb/s] [eta 00m:00s]
fio: pid=14079, got signal=6
Threads: 1: [__F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [__F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [__F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [71.4% done] [  1862/     0 kb/s] [eta 00m:04s]
Threads: 1: [__V] [78.6% done] [ 12067/     0 kb/s] [eta 00m:03s]
Threads: 1: [__V] [92.3% done] [ 15462/     0 kb/s] [eta 00m:01s]
Threads: 1: [__V] [100.0% done] [ 11008/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 11185/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 12650/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 13713/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [  6494/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [  4808/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [  4056/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=14078
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=2.4%, 2=72.1%, 4=14.2%, 8=11.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=67.9%, 4=2.1%, 10=2.0%, 20=15.4%, 50=1.1%, 100=5.3%
     lat (msec): 250=5.5%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14079
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=84.5%, 4=3.5%, 8=11.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=85.9%, 4=0.2%, 10=0.0%, 20=0.1%, 50=0.2%, 100=1.6%
     lat (msec): 250=9.8%, 500=1.3%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14080
  read : io=100MiB, bw=5,325KiB/s, runt= 19689msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  290, avg=54.72, stdev=59.26
    bw (KiB/s) : min=   16, max=20725, per=125.63%, avg=8932.36, stdev=5309.48
  write: io=95,964KiB, bw=10,422KiB/s, runt=  9428msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  203, avg= 0.88, stdev= 9.77
    bw (KiB/s) : min=    0, max=136699, per=236.25%, avg=68349.50, stdev=96660.79
  cpu          : usr=3.68%, sys=2.03%, ctx=4469
  IO depths    : 1=1.8%, 2=55.4%, 4=29.8%, 8=13.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.1%, 4=0.3%, 10=7.1%, 20=11.8%, 50=13.2%, 100=7.6%
     lat (msec): 250=10.5%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=134MiB, aggrb=7,110KiB/s, minb=0KiB/s, maxb=5,325KiB/s, mint=19689msec, maxt=19689msec
  WRITE: io=260MiB, aggrb=28,931KiB/s, minb=0KiB/s, maxb=10,422KiB/s, mint=19689msec, maxt=19689msec

Disk stats (read/write):
  sda: ios=1673/2394, merge=496/60048, ticks=38324/2392676, in_queue=2546000, util=99.20%
2.06user 0.90system 0:20.83elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2476minor)pagefaults 0swaps