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=16778
  read : io=4,096MiB, bw=233MiB/s, iops=14,918, runt= 17572msec
    clat (usec): min=11, max=106, avg=14.86, stdev= 2.43
    bw (KiB/s) : min=    0, max=249248, per=97.24%, avg=232105.78, stdev=40435.53
  write: io=4,096MiB, bw=20,834KiB/s, iops=1,302, runt=201318msec
    clat (usec): min=15, max=938K, avg=541.08, stdev=8750.18
    bw (KiB/s) : min=    0, max=78912, per=104.63%, avg=21798.16, stdev=17208.63
  cpu          : usr=32.89%, sys=4.86%, ctx=29788, 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=49.90%, 50=46.19%, 100=0.58%, 250=1.62%, 500=0.32%
     lat (usec): 750=0.13%, 1000=0.14%
     lat (msec): 2=0.22%, 4=0.13%, 10=0.28%, 20=0.21%, 50=0.16%
     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=17033
  read : io=4,036MiB, bw=153MiB/s, iops=9,767, runt= 26448msec
    clat (usec): min=2, max=156, avg=14.70, stdev= 3.69
    bw (KiB/s) : min=    0, max=245760, per=100.58%, avg=157196.12, stdev=44423.94
  write: io=1,024MiB, bw=47,042KiB/s, iops=2,940, runt= 22290msec
    clat (usec): min=2, max=1,114K, avg=35.61, stdev=4350.94
    bw (KiB/s) : min=    0, max=52544, per=100.79%, avg=47413.51, stdev=10026.23
  cpu          : usr=6.62%, sys=0.90%, ctx=3893, majf=0, minf=1114451
  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=258331/65536, short=0/0
     lat (usec): 4=0.01%, 10=8.19%, 20=79.78%, 50=12.01%, 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=233MiB/s, minb=233MiB/s, maxb=233MiB/s, mint=17572msec, maxt=17572msec
  WRITE: io=4,096MiB, aggrb=20,834KiB/s, minb=20,834KiB/s, maxb=20,834KiB/s, mint=201318msec, maxt=201318msec

Run status group 1 (all jobs):
   READ: io=4,036MiB, aggrb=153MiB/s, minb=153MiB/s, maxb=153MiB/s, mint=26448msec, maxt=26448msec
  WRITE: io=1,024MiB, aggrb=47,044KiB/s, minb=47,044KiB/s, maxb=47,044KiB/s, mint=22290msec, maxt=22290msec

Disk stats (read/write):
  sda: ios=17260/62700, merge=181/1233378, ticks=225493/125473969, in_queue=125699315, util=93.19%
104.23user 52.66system 11:38.48elapsed 22%CPU (0avgtext+0avgdata 16861712maxresident)k
8390984inputs+18758616outputs (9major+3220718minor)pagefaults 0swaps