stresser: (g=0): rw=write, bs=16K-64K/16K-64K, 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-64K/16K-64K, 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-64K/16K-64K, ioengine=mmap, iodepth=4
Starting 5 processes
Bad verify header 55ef4567
Bad verify header 55ef4567
Bad verify header 55ef4567
Bad verify header 505593ca
stresser: Laying out IO file(s) (1 file(s) / 1024MiB)

stresser: (groupid=0, jobs=1): err= 0: pid=6293
  write: io=1,024MiB, bw=23,737KiB/s, iops=590, runt= 44174msec
    clat (usec): min=14, max=1,169K, avg=1690.19, stdev=20116.46
    bw (KiB/s) : min=    0, max=64318, per=115.71%, avg=27465.49, stdev=28928.30
  cpu          : usr=1.60%, sys=2.11%, ctx=4408, majf=0, minf=262177
  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=0/26098, short=0/0
     lat (usec): 20=22.23%, 50=26.10%, 100=34.88%, 250=0.08%, 500=0.01%
     lat (usec): 750=0.02%, 1000=0.16%
     lat (msec): 2=0.53%, 4=9.93%, 10=5.56%, 20=0.07%, 50=0.05%
     lat (msec): 100=0.04%, 250=0.17%, 500=0.15%, 750=0.02%, 1000=0.01%
     lat (msec): 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=6333
  read : io=16KiB, bw=16,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=19, max=19, avg=19.00, stdev= 0.00
  write: io=48KiB, bw=48,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=91, max=91, avg=91.00, 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=1, majf=0, minf=78
  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%, 100=50.00%

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=6334
  read : io=64KiB, bw=64,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=133, max=133, avg=133.00, stdev= 0.00
  cpu          : usr=0.00%, sys=0.00%, ctx=1, majf=0, minf=82
  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): 250=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=6335
  read : io=64KiB, bw=64,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=101, max=101, avg=101.00, stdev= 0.00
  write: io=16KiB, bw=16,000KiB/s, iops=1,000, runt=     1msec
    clat (usec): min=29, max=29, avg=29.00, 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=87
  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): 50=50.00%, 250=50.00%

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=6336
  read : io=112KiB, bw=109MiB/s, iops=2,000, runt=     1msec
    clat (usec): min=56, max=137, avg=96.50, stdev=57.28
  cpu          : usr=0.00%, sys=0.00%, ctx=0, majf=0, minf=95
  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=2/0, short=0/0
     lat (usec): 100=50.00%, 250=50.00%


Run status group 0 (all jobs):
  WRITE: io=1,024MiB, aggrb=23,737KiB/s, minb=23,737KiB/s, maxb=23,737KiB/s, mint=44174msec, maxt=44174msec

Run status group 1 (all jobs):
   READ: io=256KiB, aggrb=256MiB/s, minb=16,384KiB/s, maxb=112MiB/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=4447/4496, merge=0/257926, ticks=56327/1280811, in_queue=1337138, util=99.28%
Command exited with non-zero status 4
0.71user 5.10system 1:11.29elapsed 8%CPU (0avgtext+0avgdata 0maxresident)k
2097288inputs+4196872outputs (27major+264592minor)pagefaults 0swaps