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=11481
  read : io=4,096MiB, bw=224MiB/s, iops=14,353, runt= 18264msec
    clat (usec): min=14, max=233, avg=17.04, stdev= 2.85
    bw (KiB/s) : min=    0, max=237248, per=97.27%, avg=223371.24, stdev=39114.04
  write: io=4,096MiB, bw=20,195KiB/s, iops=1,262, runt=207687msec
    clat (usec): min=18, max=575K, avg=563.61, stdev=6514.62
    bw (KiB/s) : min=    0, max=78496, per=101.31%, avg=20459.47, stdev=13866.26
  cpu          : usr=30.95%, sys=5.75%, ctx=116221, majf=1, minf=2102342
  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=40.99%, 50=52.98%, 100=2.69%, 250=1.62%, 500=0.36%
     lat (usec): 750=0.13%, 1000=0.15%
     lat (msec): 2=0.18%, 4=0.12%, 10=0.26%, 20=0.19%, 50=0.16%
     lat (msec): 100=0.11%, 250=0.04%, 500=0.01%, 750=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=11598
  read : io=4,038MiB, bw=149MiB/s, iops=9,551, runt= 27055msec
    clat (usec): min=2, max=1,101, avg=20.14, stdev= 7.04
    bw (KiB/s) : min=    0, max=233536, per=98.06%, avg=149865.48, stdev=36793.74
  write: io=1,024MiB, bw=46,572KiB/s, iops=2,910, runt= 22515msec
    clat (usec): min=3, max=281, avg=24.63, stdev= 6.40
    bw (KiB/s) : min=    0, max=59104, per=97.87%, avg=45581.91, stdev=8156.30
  cpu          : usr=7.55%, sys=1.66%, ctx=27227, majf=0, minf=1115193
  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=258426/65536, short=0/0
     lat (usec): 4=0.01%, 10=5.68%, 20=28.82%, 50=65.43%, 100=0.05%
     lat (usec): 250=0.01%, 500=0.01%
     lat (msec): 2=0.01%

Run status group 0 (all jobs):
   READ: io=4,096MiB, aggrb=224MiB/s, minb=224MiB/s, maxb=224MiB/s, mint=18264msec, maxt=18264msec
  WRITE: io=4,096MiB, aggrb=20,195KiB/s, minb=20,195KiB/s, maxb=20,195KiB/s, mint=207687msec, maxt=207687msec

Run status group 1 (all jobs):
   READ: io=4,038MiB, aggrb=149MiB/s, minb=149MiB/s, maxb=149MiB/s, mint=27055msec, maxt=27055msec
  WRITE: io=1,024MiB, aggrb=46,573KiB/s, minb=46,573KiB/s, maxb=46,573KiB/s, mint=22515msec, maxt=22515msec

Disk stats (read/write):
  sda: ios=16705/63061, merge=736/1226652, ticks=249360/101679737, in_queue=101930294, util=92.63%
105.85user 49.98system 12:11.08elapsed 21%CPU (0avgtext+0avgdata 16861568maxresident)k
8390984inputs+18761840outputs (9major+3221421minor)pagefaults 0swaps