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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13805, got signal=6
Threads: 2: [_mm] [12.0% done] [  9680/ 61156 kb/s] [eta 00m:22s]
Threads: 2: [_mF] [36.4% done] [  2162/ 59394 kb/s] [eta 00m:07s]
Threads: 2: [_FF] [100.0% done] [     0/ 48612 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: [_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: [_VV] [69.6% done] [  2416/     0 kb/s] [eta 00m:07s]
Threads: 2: [_VV] [70.8% done] [ 22992/     0 kb/s] [eta 00m:07s]
Threads: 2: [_VV] [81.8% done] [ 27596/     0 kb/s] [eta 00m:04s]
Threads: 2: [_VV] [95.0% done] [ 31380/     0 kb/s] [eta 00m:01s]
Threads: 2: [_VV] [100.0% done] [ 33865/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 27208/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 28772/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=13805
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=95.5%, 4=1.5%, 8=2.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=95.7%, 4=0.8%, 10=0.0%, 20=0.1%, 50=0.2%, 100=0.2%
     lat (msec): 250=1.1%, 500=1.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13806
  read : io=100MiB, bw=4,683KiB/s, runt= 22385msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  503, avg=46.72, stdev=73.00
    bw (KiB/s) : min=    3, max=23135, per=101.62%, avg=9692.74, stdev=6050.51
  write: io=82,464KiB, bw=5,235KiB/s, runt= 16128msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  206, avg= 0.68, stdev= 8.76
    bw (KiB/s) : min=    0, max=127410, per=368.60%, avg=63705.00, stdev=90092.47
  cpu          : usr=2.95%, sys=1.41%, ctx=5306
  IO depths    : 1=1.6%, 2=53.4%, 4=29.1%, 8=16.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.9%, 4=0.3%, 10=17.7%, 20=14.3%, 50=7.7%, 100=1.6%
     lat (msec): 250=9.1%, 500=1.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13807
  read : io=100MiB, bw=4,629KiB/s, runt= 22649msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  470, avg=40.60, stdev=66.73
    bw (KiB/s) : min=    0, max=22001, per=103.43%, avg=9865.28, stdev=8620.71
  write: io=93,608KiB, bw=5,944KiB/s, runt= 16124msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   78, avg= 0.48, stdev= 4.45
    bw (KiB/s) : min=    0, max=20621, per=59.66%, avg=10310.50, stdev=14581.25
  cpu          : usr=3.27%, sys=1.64%, ctx=5357
  IO depths    : 1=1.6%, 2=55.2%, 4=29.0%, 8=14.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.8%, 4=0.4%, 10=18.6%, 20=15.0%, 50=5.9%, 100=2.5%
     lat (msec): 250=7.6%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=206MiB, aggrb=9,538KiB/s, minb=0KiB/s, maxb=4,683KiB/s, mint=22385msec, maxt=22649msec
  WRITE: io=266MiB, aggrb=17,283KiB/s, minb=0KiB/s, maxb=5,944KiB/s, mint=22385msec, maxt=22649msec

Disk stats (read/write):
  sda: ios=2662/2628, merge=953/65215, ticks=52284/2228944, in_queue=2286960, util=98.77%
2.20user 0.94system 0:22.98elapsed 13%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2475minor)pagefaults 0swaps