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
Starting 2 processes
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)

stresser: (groupid=0, jobs=1): err= 0: pid=6193
  read : io=4,096MiB, bw=241MiB/s, iops=15,410, runt= 17011msec
    clat (usec): min=11, max=211, avg=12.63, stdev= 2.23
    bw (KiB/s) : min=    0, max=249696, per=97.16%, avg=239553.83, stdev=41902.26
  write: io=4,096MiB, bw=26,262KiB/s, iops=1,641, runt=159704msec
    clat (usec): min=14, max=5,024K, avg=512.09, stdev=22941.73
    bw (KiB/s) : min=    0, max=87040, per=125.96%, avg=33081.57, stdev=31743.48
  cpu          : usr=22.96%, sys=3.09%, ctx=20298, majf=1, minf=2102311
  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=262144/262144, short=0/0
     lat (usec): 20=90.36%, 50=6.31%, 100=0.17%, 250=0.21%, 500=0.25%
     lat (usec): 750=0.35%, 1000=0.43%
     lat (msec): 2=1.28%, 4=0.25%, 10=0.16%, 20=0.07%, 50=0.08%
     lat (msec): 100=0.07%, 250=0.02%, 500=0.01%, 750=0.01%, 1000=0.01%
     lat (msec): 2000=0.01%, >=2000=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=6364
  read : io=4,037MiB, bw=140MiB/s, iops=8,938, runt= 28906msec
    clat (usec): min=2, max=204, avg=13.93, stdev= 3.53
    bw (KiB/s) : min=    0, max=248768, per=112.95%, avg=161543.62, stdev=47076.29
  write: io=1,024MiB, bw=41,988KiB/s, iops=2,624, runt= 24973msec
    clat (usec): min=3, max=4,254K, avg=83.93, stdev=16617.88
    bw (KiB/s) : min=    0, max=52288, per=114.23%, avg=47963.83, stdev=10447.04
  cpu          : usr=6.81%, sys=0.72%, ctx=1471, majf=0, minf=1116573
  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=258374/65536, short=0/0
     lat (usec): 4=0.01%, 10=12.01%, 20=75.48%, 50=12.48%, 100=0.01%
     lat (usec): 250=0.01%
     lat (msec): >=2000=0.01%

Run status group 0 (all jobs):
   READ: io=4,096MiB, aggrb=241MiB/s, minb=241MiB/s, maxb=241MiB/s, mint=17011msec, maxt=17011msec
  WRITE: io=4,096MiB, aggrb=26,263KiB/s, minb=26,263KiB/s, maxb=26,263KiB/s, mint=159704msec, maxt=159704msec

Run status group 1 (all jobs):
   READ: io=4,037MiB, aggrb=140MiB/s, minb=140MiB/s, maxb=140MiB/s, mint=28906msec, maxt=28906msec
  WRITE: io=1,024MiB, aggrb=41,988KiB/s, minb=41,988KiB/s, maxb=41,988KiB/s, mint=24973msec, maxt=24973msec

Disk stats (read/write):
  sda: ios=17441/63055, merge=0/1233298, ticks=250832/85399537, in_queue=85650335, util=92.54%
66.76user 27.06system 10:32.73elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k
8388920inputs+18778448outputs (2major+3222547minor)pagefaults 0swaps