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=6376
  write: io=4,096MiB, bw=23,355KiB/s, iops=1,459, runt=179589msec
    clat (usec): min=14, max=2,607K, avg=682.82, stdev=13484.26
    bw (KiB/s) : min=    0, max=63488, per=117.54%, avg=27451.97, stdev=28017.86
  cpu          : usr=1.85%, sys=2.11%, ctx=17561, 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=83.14%, 50=10.18%, 100=0.02%, 250=0.02%, 500=0.01%
     lat (usec): 750=0.01%, 1000=0.06%
     lat (msec): 2=0.25%, 4=4.14%, 10=2.00%, 20=0.02%, 50=0.01%
     lat (msec): 100=0.01%, 250=0.06%, 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=6659
  read : io=16KiB, bw=666KiB/s, iops=41, runt=    24msec
    clat (usec): min=46, max=46, avg=46.00, stdev= 0.00
  cpu          : usr=0.00%, sys=0.00%, ctx=4, 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=6660
  read : io=16KiB, bw=16,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=45, max=45, avg=45.00, 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): 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=6661
  read : io=16KiB, bw=16,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=46, max=46, avg=46.00, 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): 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=6662
  read : io=16KiB, bw=666KiB/s, iops=41, runt=    24msec
    clat (usec): min=18, max=18, avg=18.00, stdev= 0.00
  write: io=16KiB, bw=666KiB/s, iops=41, runt=    24msec
    clat (usec): min=32, max=32, avg=32.00, 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=3, majf=0, minf=62
  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=33.3%, 4=66.7%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=1/1, short=0/0
     lat (usec): 20=50.00%, 50=50.00%


Run status group 0 (all jobs):
  WRITE: io=4,096MiB, aggrb=23,355KiB/s, minb=23,355KiB/s, maxb=23,355KiB/s, mint=179589msec, maxt=179589msec

Run status group 1 (all jobs):
   READ: io=64KiB, aggrb=2,730KiB/s, minb=682KiB/s, maxb=16,384KiB/s, mint=1msec, maxt=24msec
  WRITE: io=16KiB, aggrb=682KiB/s, minb=682KiB/s, maxb=682KiB/s, mint=24msec, maxt=24msec

Disk stats (read/write):
  sda: ios=17443/16723, merge=0/1031967, ticks=188597/4596366, in_queue=4784951, util=98.34%
Command exited with non-zero status 4
3.37user 22.16system 4:43.12elapsed 9%CPU (0avgtext+0avgdata 0maxresident)k
8388624inputs+16780120outputs (27major+1051489minor)pagefaults 0swaps