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=4560
  read : io=4,096MiB, bw=237MiB/s, iops=15,161, runt= 17290msec
    clat (usec): min=10, max=185, avg=13.77, stdev= 2.26
    bw (KiB/s) : min=    0, max=250080, per=97.18%, avg=235751.31, stdev=41406.35
  write: io=4,096MiB, bw=23,314KiB/s, iops=1,457, runt=179900msec
    clat (usec): min=14, max=793K, avg=588.75, stdev=6987.43
    bw (KiB/s) : min=    0, max=88032, per=102.09%, avg=23800.95, stdev=16428.75
  cpu          : usr=19.88%, sys=3.02%, ctx=18071, majf=1, minf=2108558
  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=69.92%, 50=26.70%, 100=0.13%, 250=0.24%, 500=0.13%
     lat (usec): 750=0.17%, 1000=0.20%
     lat (msec): 2=1.17%, 4=0.79%, 10=0.12%, 20=0.13%, 50=0.12%
     lat (msec): 100=0.13%, 250=0.05%, 500=0.01%, 750=0.01%, 1000=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=4758
  read : io=4,038MiB, bw=165MiB/s, iops=10,528, runt= 24548msec
    clat (usec): min=2, max=158, avg=12.85, stdev= 3.17
    bw (KiB/s) : min=    0, max=249472, per=97.76%, avg=164684.41, stdev=41229.10
  write: io=1,024MiB, bw=51,443KiB/s, iops=3,215, runt= 20383msec
    clat (usec): min=3, max=10,268, avg=17.06, stdev=40.17
    bw (KiB/s) : min=    0, max=53600, per=97.64%, avg=50228.29, stdev=8105.83
  cpu          : usr=7.65%, sys=0.88%, ctx=1225, majf=0, minf=1115934
  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=258452/65536, short=0/0
     lat (usec): 4=0.01%, 10=13.69%, 20=83.92%, 50=2.36%, 100=0.01%
     lat (usec): 250=0.01%
     lat (msec): 20=0.01%

Run status group 0 (all jobs):
   READ: io=4,096MiB, aggrb=237MiB/s, minb=237MiB/s, maxb=237MiB/s, mint=17290msec, maxt=17290msec
  WRITE: io=4,096MiB, aggrb=23,314KiB/s, minb=23,314KiB/s, maxb=23,314KiB/s, mint=179900msec, maxt=179900msec

Run status group 1 (all jobs):
   READ: io=4,038MiB, aggrb=165MiB/s, minb=165MiB/s, maxb=165MiB/s, mint=24548msec, maxt=24548msec
  WRITE: io=1,024MiB, aggrb=51,444KiB/s, minb=51,444KiB/s, maxb=51,444KiB/s, mint=20383msec, maxt=20383msec

Disk stats (read/write):
  sda: ios=17073/62289, merge=368/1234270, ticks=288458/93369579, in_queue=93657980, util=92.34%
67.15user 33.36system 10:23.20elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k
8390808inputs+18831192outputs (8major+3228120minor)pagefaults 0swaps