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=32541
  read : io=4,096MiB, bw=240MiB/s, iops=15,336, runt= 17093msec
    clat (usec): min=10, max=112, avg=13.04, stdev= 1.83
    bw (KiB/s) : min=    0, max=250528, per=97.14%, avg=238370.74, stdev=41820.09
  write: io=4,096MiB, bw=23,060KiB/s, iops=1,441, runt=181884msec
    clat (usec): min=13, max=951K, avg=597.97, stdev=8844.54
    bw (KiB/s) : min=    0, max=88544, per=104.94%, avg=24198.57, stdev=17247.95
  cpu          : usr=19.29%, sys=2.63%, ctx=30520, majf=1, minf=2102310
  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=88.69%, 50=7.91%, 100=0.29%, 250=0.12%, 500=0.12%
     lat (usec): 750=0.18%, 1000=0.19%
     lat (msec): 2=1.04%, 4=0.80%, 10=0.16%, 20=0.19%, 50=0.16%
     lat (msec): 100=0.10%, 250=0.04%, 500=0.01%, 750=0.01%, 1000=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=32717
  read : io=4,039MiB, bw=164MiB/s, iops=10,511, runt= 24589msec
    clat (usec): min=2, max=146, avg=13.01, stdev= 3.03
    bw (KiB/s) : min=    0, max=249888, per=97.92%, avg=164687.36, stdev=41828.18
  write: io=1,024MiB, bw=51,035KiB/s, iops=3,189, runt= 20546msec
    clat (usec): min=3, max=172K, avg=19.72, stdev=672.78
    bw (KiB/s) : min=    0, max=53600, per=97.55%, avg=49784.38, stdev=8405.09
  cpu          : usr=6.44%, sys=0.61%, ctx=1126, majf=0, minf=1115116
  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=258478/65536, short=0/0
     lat (usec): 4=0.01%, 10=12.87%, 20=84.32%, 50=2.78%, 100=0.01%
     lat (usec): 250=0.01%
     lat (msec): 250=0.01%

Run status group 0 (all jobs):
   READ: io=4,096MiB, aggrb=240MiB/s, minb=240MiB/s, maxb=240MiB/s, mint=17093msec, maxt=17093msec
  WRITE: io=4,096MiB, aggrb=23,060KiB/s, minb=23,060KiB/s, maxb=23,060KiB/s, mint=181884msec, maxt=181884msec

Run status group 1 (all jobs):
   READ: io=4,039MiB, aggrb=164MiB/s, minb=164MiB/s, maxb=164MiB/s, mint=24589msec, maxt=24589msec
  WRITE: io=1,024MiB, aggrb=51,035KiB/s, minb=51,035KiB/s, maxb=51,035KiB/s, mint=20546msec, maxt=20546msec

Disk stats (read/write):
  sda: ios=16943/61996, merge=498/1234612, ticks=227415/124578936, in_queue=124806279, util=93.25%
66.38user 30.37system 11:43.53elapsed 13%CPU (0avgtext+0avgdata 16861664maxresident)k
8390688inputs+18763024outputs (7major+3221302minor)pagefaults 0swaps