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=3007
  read : io=4,096MiB, bw=236MiB/s, iops=15,078, runt= 17385msec
    clat (usec): min=11, max=143, avg=13.91, stdev= 2.76
    bw (KiB/s) : min=    0, max=247360, per=97.10%, avg=234264.69, stdev=41355.18
  write: io=4,096MiB, bw=18,405KiB/s, iops=1,150, runt=227889msec
    clat (usec): min=13, max=699K, avg=665.85, stdev=10688.68
    bw (KiB/s) : min=    0, max=79168, per=106.66%, avg=19630.80, stdev=21705.16
  cpu          : usr=29.85%, sys=3.45%, ctx=17245, majf=1, minf=2102311
  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=50.99%, 50=45.06%, 100=0.66%, 250=1.12%, 500=0.63%
     lat (usec): 750=0.23%, 1000=0.30%
     lat (msec): 2=0.41%, 4=0.07%, 10=0.15%, 20=0.11%, 50=0.09%
     lat (msec): 100=0.08%, 250=0.07%, 500=0.02%, 750=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=20328
  read : io=4,038MiB, bw=157MiB/s, iops=10,028, runt= 25771msec
    clat (usec): min=2, max=243, avg=14.58, stdev= 3.76
    bw (KiB/s) : min=    0, max=243424, per=98.51%, avg=158075.33, stdev=42650.48
  write: io=1,024MiB, bw=48,696KiB/s, iops=3,043, runt= 21533msec
    clat (usec): min=3, max=590K, avg=27.35, stdev=2305.88
    bw (KiB/s) : min=    0, max=52096, per=98.63%, avg=48029.84, stdev=9788.60
  cpu          : usr=6.77%, sys=0.96%, ctx=11159, majf=0, minf=1114861
  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=258450/65536, short=0/0
     lat (usec): 4=0.01%, 10=7.24%, 20=80.80%, 50=11.93%, 100=0.01%
     lat (usec): 250=0.01%
     lat (msec): 750=0.01%

Run status group 0 (all jobs):
   READ: io=4,096MiB, aggrb=236MiB/s, minb=236MiB/s, maxb=236MiB/s, mint=17385msec, maxt=17385msec
  WRITE: io=4,096MiB, aggrb=18,405KiB/s, minb=18,405KiB/s, maxb=18,405KiB/s, mint=227889msec, maxt=227889msec

Run status group 1 (all jobs):
   READ: io=4,038MiB, aggrb=157MiB/s, minb=157MiB/s, maxb=157MiB/s, mint=25771msec, maxt=25771msec
  WRITE: io=1,024MiB, aggrb=48,697KiB/s, minb=48,697KiB/s, maxb=48,697KiB/s, mint=21533msec, maxt=21533msec

Disk stats (read/write):
  sda: ios=16912/62867, merge=528/1234138, ticks=313010/118577790, in_queue=118890820, util=93.81%
97.51user 54.07system 12:22.87elapsed 20%CPU (0avgtext+0avgdata 16861280maxresident)k
8390608inputs+18765680outputs (8major+3221111minor)pagefaults 0swaps