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=25911
  read : io=4,096MiB, bw=230MiB/s, iops=14,741, runt= 17783msec
    clat (usec): min=11, max=3,308, avg=15.09, stdev= 7.07
    bw (KiB/s) : min=    0, max=245920, per=97.21%, avg=229295.11, stdev=40474.12
  write: io=4,096MiB, bw=20,160KiB/s, iops=1,260, runt=208044msec
    clat (usec): min=14, max=935K, avg=594.28, stdev=9970.12
    bw (KiB/s) : min=    0, max=80896, per=106.00%, avg=21369.63, stdev=21379.08
  cpu          : usr=31.10%, sys=4.15%, ctx=37809, majf=1, minf=2102309
  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=50.08%, 50=45.86%, 100=0.80%, 250=1.41%, 500=0.37%
     lat (usec): 750=0.23%, 1000=0.29%
     lat (msec): 2=0.44%, 4=0.07%, 10=0.12%, 20=0.10%, 50=0.08%
     lat (msec): 100=0.09%, 250=0.07%, 500=0.01%, 750=0.01%, 1000=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=26179
  read : io=4,039MiB, bw=157MiB/s, iops=10,057, runt= 25701msec
    clat (usec): min=2, max=323, avg=14.35, stdev= 3.80
    bw (KiB/s) : min=    0, max=244320, per=98.49%, avg=158498.25, stdev=41000.20
  write: io=1,024MiB, bw=48,793KiB/s, iops=3,049, runt= 21490msec
    clat (usec): min=2, max=409K, avg=24.61, stdev=1599.04
    bw (KiB/s) : min=    0, max=52768, per=98.53%, avg=48079.33, stdev=8682.25
  cpu          : usr=6.59%, sys=0.94%, ctx=8903, majf=0, minf=1114619
  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=258499/65536, short=0/0
     lat (usec): 4=0.01%, 10=8.73%, 20=81.98%, 50=9.25%, 100=0.02%
     lat (usec): 250=0.01%, 500=0.01%
     lat (msec): 500=0.01%

Run status group 0 (all jobs):
   READ: io=4,096MiB, aggrb=230MiB/s, minb=230MiB/s, maxb=230MiB/s, mint=17783msec, maxt=17783msec
  WRITE: io=4,096MiB, aggrb=20,160KiB/s, minb=20,160KiB/s, maxb=20,160KiB/s, mint=208044msec, maxt=208044msec

Run status group 1 (all jobs):
   READ: io=4,039MiB, aggrb=157MiB/s, minb=157MiB/s, maxb=157MiB/s, mint=25701msec, maxt=25701msec
  WRITE: io=1,024MiB, aggrb=48,795KiB/s, minb=48,795KiB/s, maxb=48,795KiB/s, mint=21490msec, maxt=21490msec

Disk stats (read/write):
  sda: ios=16687/65120, merge=753/1231659, ticks=241860/119670623, in_queue=119912397, util=93.01%
96.80user 48.13system 11:30.28elapsed 20%CPU (0avgtext+0avgdata 16861280maxresident)k
8390792inputs+18764272outputs (9major+3220848minor)pagefaults 0swaps