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=24372
  read : io=4,096MiB, bw=230MiB/s, iops=14,749, runt= 17773msec
    clat (usec): min=11, max=104, avg=15.59, stdev= 2.23
    bw (KiB/s) : min=    0, max=248384, per=97.25%, avg=229502.22, stdev=39777.54
  write: io=4,096MiB, bw=19,821KiB/s, iops=1,238, runt=211606msec
    clat (usec): min=13, max=848K, avg=616.93, stdev=11387.94
    bw (KiB/s) : min=    0, max=84608, per=110.12%, avg=21827.16, stdev=24409.01
  cpu          : usr=29.97%, sys=3.62%, ctx=48969, 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=51.18%, 50=45.27%, 100=0.28%, 250=1.35%, 500=0.30%
     lat (usec): 750=0.27%, 1000=0.36%
     lat (msec): 2=0.50%, 4=0.07%, 10=0.13%, 20=0.10%, 50=0.06%
     lat (msec): 100=0.07%, 250=0.06%, 500=0.02%, 750=0.01%, 1000=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=24458
  read : io=4,038MiB, bw=148MiB/s, iops=9,497, runt= 27209msec
    clat (usec): min=2, max=137, avg=15.21, stdev= 3.61
    bw (KiB/s) : min=    0, max=247232, per=103.49%, avg=157259.94, stdev=45809.67
  write: io=1,024MiB, bw=45,388KiB/s, iops=2,836, runt= 23102msec
    clat (usec): min=2, max=1,844K, avg=48.44, stdev=7202.21
    bw (KiB/s) : min=    0, max=51776, per=104.05%, avg=47229.47, stdev=9779.54
  cpu          : usr=6.71%, sys=0.95%, ctx=12239, majf=0, minf=1113955
  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=258422/65536, short=0/0
     lat (usec): 4=0.01%, 10=3.32%, 20=77.08%, 50=19.58%, 100=0.01%
     lat (usec): 250=0.01%
     lat (msec): 2000=0.01%

Run status group 0 (all jobs):
   READ: io=4,096MiB, aggrb=230MiB/s, minb=230MiB/s, maxb=230MiB/s, mint=17773msec, maxt=17773msec
  WRITE: io=4,096MiB, aggrb=19,821KiB/s, minb=19,821KiB/s, maxb=19,821KiB/s, mint=211606msec, maxt=211606msec

Run status group 1 (all jobs):
   READ: io=4,038MiB, aggrb=148MiB/s, minb=148MiB/s, maxb=148MiB/s, mint=27209msec, maxt=27209msec
  WRITE: io=1,024MiB, aggrb=45,389KiB/s, minb=45,389KiB/s, maxb=45,389KiB/s, mint=23102msec, maxt=23102msec

Disk stats (read/write):
  sda: ios=16799/63441, merge=643/1233008, ticks=256557/117731010, in_queue=117987466, util=92.86%
94.73user 54.67system 12:19.88elapsed 20%CPU (0avgtext+0avgdata 16861280maxresident)k
8390648inputs+18761368outputs (8major+3220187minor)pagefaults 0swaps