stresser: (g=0): rw=write, bs=16K-16K/16K-16K, ioengine=mmap, iodepth=1
...
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 8 processes
Bad verify header 0
Bad verify header 0
Bad verify header 0
Bad verify header 0
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)

stresser: (groupid=0, jobs=1): err= 0: pid=7244
  write: io=4,096MiB, bw=5,710KiB/s, iops=356, runt=734554msec
    clat (usec): min=14, max=2,670K, avg=2799.68, stdev=24874.19
    bw (KiB/s) : min=    0, max=23731, per=28.67%, avg=6456.16, stdev=7080.03
  cpu          : usr=0.48%, sys=0.56%, ctx=17598, majf=0, minf=1048747
  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=71.93%, 50=21.32%, 100=0.05%, 250=0.06%, 500=0.01%
     lat (usec): 750=0.01%, 1000=0.02%
     lat (msec): 2=0.04%, 4=0.23%, 10=1.50%, 20=2.84%, 50=0.85%
     lat (msec): 100=0.54%, 250=0.31%, 500=0.26%, 750=0.03%, 1000=0.01%
     lat (msec): 2000=0.01%, >=2000=0.01%
stresser: (groupid=0, jobs=1): err= 0: pid=7245
  write: io=4,096MiB, bw=5,690KiB/s, iops=355, runt=737084msec
    clat (usec): min=14, max=2,356K, avg=2808.88, stdev=24519.06
    bw (KiB/s) : min=    0, max=31305, per=28.40%, avg=6397.00, stdev=6951.97
  cpu          : usr=0.48%, sys=0.59%, ctx=17592, majf=0, minf=1048745
  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=66.77%, 50=26.48%, 100=0.06%, 250=0.05%, 500=0.01%
     lat (usec): 750=0.01%, 1000=0.02%
     lat (msec): 2=0.04%, 4=0.20%, 10=1.39%, 20=2.94%, 50=0.88%
     lat (msec): 100=0.55%, 250=0.32%, 500=0.26%, 750=0.03%, 1000=0.01%
     lat (msec): 2000=0.01%, >=2000=0.01%
stresser: (groupid=0, jobs=1): err= 0: pid=7246
  write: io=4,096MiB, bw=5,786KiB/s, iops=361, runt=724851msec
    clat (usec): min=14, max=1,503K, avg=2762.65, stdev=23838.35
    bw (KiB/s) : min=    0, max=23968, per=28.77%, avg=6480.11, stdev=7087.49
  cpu          : usr=0.49%, sys=0.56%, ctx=17566, majf=1, minf=1048742
  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=74.45%, 50=18.80%, 100=0.05%, 250=0.07%, 500=0.01%
     lat (usec): 750=0.01%, 1000=0.01%
     lat (msec): 2=0.04%, 4=0.23%, 10=1.47%, 20=2.88%, 50=0.86%
     lat (msec): 100=0.53%, 250=0.30%, 500=0.26%, 750=0.03%, 1000=0.01%
     lat (msec): 2000=0.01%
stresser: (groupid=0, jobs=1): err= 0: pid=7247
  write: io=4,096MiB, bw=5,630KiB/s, iops=351, runt=744947msec
    clat (usec): min=14, max=2,373K, avg=2839.33, stdev=25499.36
    bw (KiB/s) : min=    0, max=31367, per=28.22%, avg=6354.54, stdev=7169.69
  cpu          : usr=0.48%, sys=0.55%, ctx=17591, majf=0, minf=1048751
  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=70.43%, 50=22.82%, 100=0.06%, 250=0.05%, 500=0.01%
     lat (usec): 750=0.01%, 1000=0.02%
     lat (msec): 2=0.05%, 4=0.25%, 10=1.46%, 20=2.92%, 50=0.83%
     lat (msec): 100=0.49%, 250=0.29%, 500=0.28%, 750=0.04%, 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=8283
  read : io=16KiB, bw=36KiB/s, iops=2, runt=   434msec
    clat (usec): min=3,492, max=3,492, avg=3492.00, stdev= 0.00
  write: io=32KiB, bw=73KiB/s, iops=4, runt=   434msec
    clat (msec): min=19, max=410, avg=214.98, stdev=276.01
    bw (KiB/s) : min=    0, max=    0, per=0.00%, avg= 0.00, stdev= 0.00
  cpu          : usr=0.00%, sys=0.23%, ctx=12, majf=0, minf=66
  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=25.0%, 4=75.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w: total=1/2, short=0/0

     lat (msec): 4=33.33%, 20=33.33%, 500=33.33%
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=8284
  read : io=16KiB, bw=68KiB/s, iops=4, runt=   233msec
    clat (usec): min=232K, max=232K, avg=232275.00, stdev= 0.00
  cpu          : usr=0.00%, sys=0.00%, ctx=5, 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 (msec): 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=8285
  read : io=16KiB, bw=37KiB/s, iops=2, runt=   429msec
    clat (usec): min=37,812, max=37,812, avg=37812.00, stdev= 0.00
  write: io=16KiB, bw=37KiB/s, iops=2, runt=   429msec
    clat (usec): min=390K, max=390K, avg=389870.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=    0, per=0.00%, avg= 0.00, stdev= 0.00
  cpu          : usr=0.23%, sys=0.00%, ctx=8, 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 (msec): 50=50.00%, 500=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=8286
  read : io=16KiB, bw=58KiB/s, iops=3, runt=   274msec
    clat (usec): min=274K, max=274K, avg=273548.00, 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 (msec): 500=100.00%

Run status group 0 (all jobs):
  WRITE: io=16,384MiB, aggrb=22,521KiB/s, minb=5,630KiB/s, maxb=5,786KiB/s, mint=724851msec, maxt=744947msec

Run status group 1 (all jobs):
   READ: io=64KiB, aggrb=147KiB/s, minb=36KiB/s, maxb=68KiB/s, mint=233msec, maxt=434msec
  WRITE: io=48KiB, aggrb=110KiB/s, minb=37KiB/s, maxb=73KiB/s, mint=429msec, maxt=434msec

Disk stats (read/write):
  sda: ios=70042/196559, merge=0/11354898, ticks=3227547/104611692, in_queue=107839175, util=98.22%
Command exited with non-zero status 4
14.63user 143.20system 25:51.26elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k
33556880inputs+100667328outputs (32major+4200964minor)pagefaults 0swaps