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] [60.0% done] [  5179/ 72581 kb/s] [eta 00m:02s]
Threads: 3: [FFm] [66.7% done] [   724/ 16691 kb/s] [eta 00m:02s]
Threads: 3: [FFm] [71.4% done] [   370/ 11614 kb/s] [eta 00m:02s]
Threads: 3: [FFm] [66.7% done] [   303/     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=11197, got signal=6
Threads: 2: [FF_] [100.0% done] [    15/     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: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=11195, got signal=6
Threads: 1: [_V_] [84.2% done] [ 23638/     0 kb/s] [eta 00m:03s]
Threads: 1: [_V_] [100.0% done] [ 37116/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [ 32771/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=11195
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=91.8%, 4=2.5%, 8=5.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=92.8%, 4=0.2%, 10=0.0%, 20=0.0%, 50=0.2%, 100=0.7%
     lat (msec): 250=4.3%, 500=1.3%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11196
  read : io=100MiB, bw=5,547KiB/s, runt= 18903msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  323, avg=17.36, stdev=32.00
    bw (KiB/s) : min=   12, max=37701, per=287.07%, avg=19365.67, stdev=17560.30
  write: io=99,512KiB, bw=6,415KiB/s, runt= 15884msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  166, avg= 0.74, stdev= 7.92
    bw (KiB/s) : min=    0, max=38927, per=107.02%, avg=19463.50, stdev=27525.55
  cpu          : usr=4.23%, sys=2.05%, ctx=3830
  IO depths    : 1=3.5%, 2=59.6%, 4=28.4%, 8=8.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.1%, 4=0.6%, 10=20.2%, 20=18.2%, 50=7.2%, 100=0.8%
     lat (msec): 250=1.5%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=11197
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=87.4%, 4=3.7%, 8=8.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=87.3%, 4=0.6%, 10=0.1%, 20=0.2%, 50=1.0%, 100=1.5%
     lat (msec): 250=5.2%, 500=2.6%, 750=1.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=122MiB, aggrb=6,746KiB/s, minb=0KiB/s, maxb=5,547KiB/s, mint=0msec, maxt=18903msec
  WRITE: io=276MiB, aggrb=18,187KiB/s, minb=0KiB/s, maxb=6,415KiB/s, mint=0msec, maxt=18903msec

Disk stats (read/write):
  sda: ios=1462/2793, merge=307/67545, ticks=20824/2132800, in_queue=2156324, util=95.29%
2.24user 0.98system 0:19.26elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2487minor)pagefaults 0swaps