stresser: (g=0): rw=write, bs=16K-16K/16K-16K, ioengine=mmap, iodepth=1
fio: mixed read/write workload with verify. May not work as expected, unless you pre-populated the file
stresser: (g=1): rw=randrw, bs=16K-16K/16K-16K, ioengine=mmap, iodepth=4
fio: mixed read/write workload with verify. May not work as expected, unless you pre-populated the file
fio: mixed read/write workload with verify. May not work as expected, unless you pre-populated the file
...
fio: mixed read/write workload with verify. May not work as expected, unless you pre-populated the file
stresser: (g=1): rw=randrw, bs=16K-16K/16K-16K, ioengine=mmap, iodepth=4
Starting 5 processes
Bad verify header 55ef4567
Bad verify header 55ef4567
Bad verify header 55ef4567
Bad verify header 55ef4567
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)

stresser: (groupid=0, jobs=1): err= 0: pid=6350
  write: io=4,096MiB, bw=23,663KiB/s, iops=1,478, runt=177247msec
    clat (usec): min=13, max=3,281K, avg=673.61, stdev=14359.13
    bw (KiB/s) : min=    0, max=63235, per=117.63%, avg=27835.06, stdev=27809.92
  cpu          : usr=1.86%, sys=2.15%, ctx=17577, majf=0, minf=1048636
  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=0/262144, short=0/0
     lat (usec): 20=84.79%, 50=8.53%, 100=0.02%, 250=0.02%, 500=0.01%
     lat (usec): 750=0.01%, 1000=0.06%
     lat (msec): 2=0.24%, 4=4.09%, 10=2.07%, 20=0.02%, 50=0.02%
     lat (msec): 100=0.01%, 250=0.05%, 500=0.07%, 750=0.01%, 1000=0.01%
     lat (msec): 2000=0.01%, >=2000=0.01%
stresser: (groupid=1, jobs=1): err=84 (file:io_u.c:986, func=io_u_sync_complete, error=Invalid or incomplete multibyte or wide character): pid=6626
  read : io=16KiB, bw=16,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=26, max=26, avg=26.00, stdev= 0.00
  write: io=48KiB, bw=48,000KiB/s, iops=3,000, runt=     1msec
    clat (usec): min=21, max=41, avg=28.33, stdev=11.02
    bw (KiB/s) : min=    0, max=    0, per=0.00%, avg= 0.00, stdev= 0.00
  cpu          : usr=0.00%, sys=0.00%, ctx=0, majf=0, minf=71
  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=20.0%, 4=80.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=1/3, short=0/0
     lat (usec): 50=100.00%

stresser: (groupid=1, jobs=1): err=84 (file:io_u.c:986, func=io_u_sync_complete, error=Invalid or incomplete multibyte or wide character): pid=6627
  read : io=16KiB, bw=16,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=50, max=50, avg=50.00, stdev= 0.00
  cpu          : usr=0.00%, sys=0.00%, ctx=1, majf=0, minf=57
  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 (usec): 100=100.00%

stresser: (groupid=1, jobs=1): err=84 (file:io_u.c:986, func=io_u_sync_complete, error=Invalid or incomplete multibyte or wide character): pid=6628
  read : io=16KiB, bw=16,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=47, max=47, avg=47.00, stdev= 0.00
  cpu          : usr=0.00%, sys=0.00%, ctx=1, majf=0, minf=56
  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 (usec): 50=100.00%

stresser: (groupid=1, jobs=1): err=84 (file:io_u.c:986, func=io_u_sync_complete, error=Invalid or incomplete multibyte or wide character): pid=6629
  read : io=48KiB, bw=48,000KiB/s, iops=3,000, runt=     1msec
    clat (usec): min=20, max=41, avg=28.33, stdev=11.15
  write: io=16KiB, bw=16,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=25, max=25, avg=25.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=    0, per=0.00%, avg= 0.00, stdev= 0.00
  cpu          : usr=0.00%, sys=0.00%, ctx=0, majf=0, minf=70
  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=20.0%, 4=80.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=3/1, short=0/0
     lat (usec): 50=100.00%


Run status group 0 (all jobs):
  WRITE: io=4,096MiB, aggrb=23,663KiB/s, minb=23,663KiB/s, maxb=23,663KiB/s, mint=177247msec, maxt=177247msec

Run status group 1 (all jobs):
   READ: io=96KiB, aggrb=98,304KiB/s, minb=16,384KiB/s, maxb=49,152KiB/s, mint=1msec, maxt=1msec
  WRITE: io=64KiB, aggrb=65,536KiB/s, minb=16,384KiB/s, maxb=49,152KiB/s, mint=1msec, maxt=1msec

Disk stats (read/write):
  sda: ios=17444/16703, merge=0/1031992, ticks=185382/4514532, in_queue=4699885, util=98.94%
Command exited with non-zero status 4
3.36user 19.36system 4:37.14elapsed 8%CPU (0avgtext+0avgdata 0maxresident)k
8388920inputs+16780192outputs (27major+1051490minor)pagefaults 0swaps