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=10045
  read : io=4,096MiB, bw=230MiB/s, iops=14,725, runt= 17802msec
    clat (usec): min=11, max=106, avg=15.67, stdev= 2.47
    bw (KiB/s) : min=    0, max=245376, per=97.27%, avg=229183.11, stdev=39843.65
  write: io=4,096MiB, bw=20,810KiB/s, iops=1,300, runt=201548msec
    clat (usec): min=17, max=954K, avg=539.11, stdev=8726.08
    bw (KiB/s) : min=    0, max=78432, per=104.98%, avg=21845.96, stdev=17094.89
  cpu          : usr=33.17%, sys=5.12%, ctx=36438, 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=49.49%, 50=46.33%, 100=0.86%, 250=1.71%, 500=0.28%
     lat (usec): 750=0.13%, 1000=0.15%
     lat (msec): 2=0.19%, 4=0.13%, 10=0.27%, 20=0.19%, 50=0.15%
     lat (msec): 100=0.07%, 250=0.04%, 500=0.01%, 750=0.01%, 1000=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=10158
  read : io=4,038MiB, bw=149MiB/s, iops=9,561, runt= 27028msec
    clat (usec): min=2, max=316, avg=15.98, stdev= 3.97
    bw (KiB/s) : min=    0, max=239168, per=101.64%, avg=155497.22, stdev=42770.31
  write: io=1,024MiB, bw=46,150KiB/s, iops=2,884, runt= 22721msec
    clat (usec): min=2, max=1,454K, avg=42.93, stdev=5680.47
    bw (KiB/s) : min=    0, max=52128, per=102.30%, avg=47212.63, stdev=9770.23
  cpu          : usr=6.59%, sys=0.97%, ctx=1661, majf=0, minf=1114099
  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=5.64%, 20=72.72%, 50=21.61%, 100=0.01%
     lat (usec): 250=0.01%, 500=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=17802msec, maxt=17802msec
  WRITE: io=4,096MiB, aggrb=20,810KiB/s, minb=20,810KiB/s, maxb=20,810KiB/s, mint=201548msec, maxt=201548msec

Run status group 1 (all jobs):
   READ: io=4,038MiB, aggrb=149MiB/s, minb=149MiB/s, maxb=149MiB/s, mint=27028msec, maxt=27028msec
  WRITE: io=1,024MiB, aggrb=46,150KiB/s, minb=46,150KiB/s, maxb=46,150KiB/s, mint=22721msec, maxt=22721msec

Disk stats (read/write):
  sda: ios=17238/62697, merge=203/1233726, ticks=223758/126742866, in_queue=126966465, util=93.16%
105.00user 51.98system 11:38.28elapsed 22%CPU (0avgtext+0avgdata 16861728maxresident)k
8390784inputs+18761368outputs (9major+3220374minor)pagefaults 0swaps