f1: (g=0): rw=write, bs=16K-64K/16K-64K, ioengine=sync, iodepth=1
f2: (g=1): rw=randwrite, bs=16K-64K/16K-64K, ioengine=sync, iodepth=1
f3: (g=2): rw=read, bs=16K-64K/16K-64K, ioengine=sync, iodepth=1
f4: (g=3): rw=randread, bs=16K-64K/16K-64K, ioengine=sync, iodepth=1
Starting 4 processes
Bad verify header 0

f1: (groupid=0, jobs=1): err= 0: pid=6276
  write: io=1,024MiB, bw=46,659KiB/s, iops=1,162, runt= 22473msec
    clat (usec): min=20, max=5,067K, avg=856.88, stdev=41859.81
    bw (KiB/s) : min=    0, max=627200, per=172.52%, avg=80499.50, stdev=176266.72
  cpu          : usr=0.32%, sys=7.00%, ctx=290, majf=0, minf=26
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=0/26129, short=0/0
     lat (usec): 50=44.39%, 100=52.10%, 250=2.38%, 500=0.81%, 750=0.02%
     lat (msec): 4=0.02%, 10=0.04%, 20=0.06%, 50=0.03%, 100=0.02%
     lat (msec): 250=0.03%, 500=0.08%, 750=0.02%, >=2000=0.01%
f2: (groupid=1, jobs=1): err= 0: pid=6294
  write: io=1,024MiB, bw=110MiB/s, iops=2,848, runt=  9289msec
    clat (usec): min=21, max=642K, avg=113.87, stdev=4016.71
    bw (KiB/s) : min=    0, max=133024, per=101.36%, avg=114430.83, stdev=39187.14
  cpu          : usr=3.28%, sys=1.06%, ctx=1567, majf=0, minf=597
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=0/26459, short=0/0
     lat (usec): 50=39.91%, 100=46.33%, 250=12.67%, 500=0.11%, 1000=0.72%
     lat (msec): 2=0.08%, 4=0.03%, 10=0.12%, 20=0.02%, 50=0.01%
     lat (msec): 100=0.01%, 750=0.01%
f3: (groupid=2, jobs=1): err= 0: pid=6461
  read : io=1,024MiB, bw=40,905KiB/s, iops=1,024, runt= 25634msec
    clat (usec): min=6, max=886K, avg=971.81, stdev=15516.15
    bw (KiB/s) : min=   97, max=96288, per=119.09%, avg=48715.60, stdev=45725.34
  cpu          : usr=0.29%, sys=3.41%, ctx=4114, majf=0, minf=47
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=26268/0, short=0/0
     lat (usec): 10=23.13%, 20=30.43%, 50=29.85%, 100=0.32%, 250=0.68%
     lat (msec): 2=2.09%, 4=12.46%, 10=0.76%, 20=0.03%, 50=0.07%
     lat (msec): 100=0.05%, 250=0.05%, 500=0.06%, 750=0.02%, 1000=0.01%
f4: (groupid=3, jobs=1): err=84 (file:io_u.c:986, func=io_u_sync_complete, error=Invalid or incomplete multibyte or wide character): pid=6601
  read : io=48KiB, bw=2,086KiB/s, iops=43, runt=    23msec
    clat (usec): min=22,250, max=22,250, avg=22250.00, stdev= 0.00
  cpu          : usr=0.00%, sys=0.00%, ctx=15, majf=0, minf=64
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=50.0%, 4=50.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=1/0, short=0/0

     lat (msec): 50=100.00%

Run status group 0 (all jobs):
  WRITE: io=1,024MiB, aggrb=46,660KiB/s, minb=46,660KiB/s, maxb=46,660KiB/s, mint=22473msec, maxt=22473msec

Run status group 1 (all jobs):
   READ: io=0KiB, aggrb=0KiB/s, minb=0KiB/s, maxb=0KiB/s, mint=1msec, maxt=1msec
  WRITE: io=1,024MiB, aggrb=110MiB/s, minb=110MiB/s, maxb=110MiB/s, mint=9289msec, maxt=9289msec

Run status group 2 (all jobs):
   READ: io=1,024MiB, aggrb=40,906KiB/s, minb=40,906KiB/s, maxb=40,906KiB/s, mint=25634msec, maxt=25634msec

Run status group 3 (all jobs):
   READ: io=48KiB, aggrb=2,137KiB/s, minb=2,137KiB/s, maxb=2,137KiB/s, mint=23msec, maxt=23msec

Disk stats (read/write):
  sda: ios=4893/42549, merge=256/436086, ticks=61724/46274152, in_queue=46350369, util=96.44%
Command exited with non-zero status 1
6.37user 4.59system 3:59.38elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
2103480inputs+3826704outputs (26major+3441minor)pagefaults 0swaps