stresser: (g=0): rw=write, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=1
stresser: (g=1): rw=randrw, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=4
...
stresser: (g=1): rw=randrw, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=4
Starting 5 processes
stresser: Laying out IO file(s) (1 file(s) / 4096MiB)

stresser: (groupid=0, jobs=1): err= 0: pid=6374
  read : io=4,096MiB, bw=238MiB/s, iops=6,078, runt= 17209msec
    clat (usec): min=11, max=308, avg=35.02, stdev=16.09
    bw (KiB/s) : min=    0, max=252064, per=97.19%, avg=236867.66, stdev=41541.22
  write: io=4,096MiB, bw=21,438KiB/s, iops=534, runt=195648msec
    clat (usec): min=15, max=5,214K, avg=1630.03, stdev=34096.49
    bw (KiB/s) : min=    0, max=47008, per=120.56%, avg=25846.35, stdev=18874.60
  cpu          : usr=19.86%, sys=2.96%, ctx=18289, majf=0, minf=2099250
  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=104600/104600, short=0/0
     lat (usec): 20=15.97%, 50=47.15%, 100=28.46%, 250=0.10%, 500=0.05%
     lat (usec): 750=0.04%, 1000=0.03%
     lat (msec): 2=0.62%, 4=4.29%, 10=2.86%, 20=0.11%, 50=0.11%
     lat (msec): 100=0.11%, 250=0.04%, 500=0.05%, 750=0.01%, 1000=0.01%
     lat (msec): 2000=0.01%, >=2000=0.01%
stresser: (groupid=1, jobs=1): err= 0: pid=6688
  read : io=3,072MiB, bw=17,089KiB/s, iops=427, runt=184074msec
    clat (usec): min=2, max=100K, avg=70.49, stdev=1252.62
    bw (KiB/s) : min=    7, max=332416, per=54.23%, avg=36020.63, stdev=75713.39
  write: io=1,024MiB, bw=5,535KiB/s, iops=138, runt=189420msec
    clat (usec): min=5, max=6,596K, avg=6994.10, stdev=130202.20
    bw (KiB/s) : min=    0, max=102336, per=50.46%, avg=11171.65, stdev=24092.28
  cpu          : usr=1.46%, sys=1.51%, ctx=1467, majf=0, minf=844380
  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=78618/26234, short=0/0
     lat (usec): 4=0.01%, 10=3.11%, 20=10.79%, 50=43.09%, 100=40.49%
     lat (usec): 250=2.30%, 500=0.02%, 1000=0.01%
     lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.03%
     lat (msec): 100=0.02%, 250=0.02%, 500=0.01%, 750=0.03%, 1000=0.01%
     lat (msec): 2000=0.03%, >=2000=0.03%
stresser: (groupid=1, jobs=1): err= 0: pid=6689
  read : io=3,072MiB, bw=17,042KiB/s, iops=426, runt=184579msec
    clat (usec): min=3, max=48,696, avg=69.40, stdev=917.70
    bw (KiB/s) : min=   10, max=278720, per=50.66%, avg=33651.50, stdev=65397.93
  write: io=1,024MiB, bw=5,680KiB/s, iops=142, runt=184584msec
    clat (usec): min=6, max=7,144K, avg=6795.68, stdev=128924.33
    bw (KiB/s) : min=    0, max=93536, per=48.37%, avg=10710.49, stdev=21137.82
  cpu          : usr=1.52%, sys=1.69%, ctx=1475, majf=0, minf=840919
  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=78675/26292, short=0/0
     lat (usec): 4=0.01%, 10=3.16%, 20=8.02%, 50=44.42%, 100=40.10%
     lat (usec): 250=4.02%, 500=0.04%, 750=0.01%
     lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.07%
     lat (msec): 100=0.01%, 250=0.01%, 500=0.03%, 750=0.03%, 1000=0.02%
     lat (msec): 2000=0.03%, >=2000=0.02%
stresser: (groupid=1, jobs=1): err= 0: pid=6690
  read : io=3,072MiB, bw=16,606KiB/s, iops=414, runt=189430msec
    clat (usec): min=3, max=103K, avg=64.28, stdev=1131.91
    bw (KiB/s) : min=    7, max=302976, per=56.92%, avg=37811.14, stdev=74665.81
  write: io=1,024MiB, bw=5,535KiB/s, iops=138, runt=189431msec
    clat (usec): min=6, max=7,302K, avg=7008.99, stdev=151766.65
    bw (KiB/s) : min=    0, max=102144, per=55.28%, avg=12238.62, stdev=24705.80
  cpu          : usr=1.44%, sys=1.46%, ctx=1257, majf=0, minf=843593
  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=78548/26254, short=0/0
     lat (usec): 4=0.01%, 10=3.42%, 20=11.21%, 50=43.33%, 100=39.95%
     lat (usec): 250=1.88%, 500=0.02%, 750=0.01%
     lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.03%
     lat (msec): 100=0.02%, 250=0.01%, 500=0.02%, 750=0.02%, 1000=0.02%
     lat (msec): 2000=0.02%, >=2000=0.02%
stresser: (groupid=1, jobs=1): err= 0: pid=6691
  read : io=3,072MiB, bw=17,047KiB/s, iops=425, runt=184533msec
    clat (usec): min=3, max=69,719, avg=70.80, stdev=957.33
    bw (KiB/s) : min=    5, max=272640, per=54.75%, avg=36366.05, stdev=65784.48
  write: io=1,024MiB, bw=5,664KiB/s, iops=140, runt=185123msec
    clat (usec): min=6, max=9,670K, avg=6867.68, stdev=144140.69
    bw (KiB/s) : min=    0, max=94016, per=53.86%, avg=11924.60, stdev=21784.58
  cpu          : usr=1.50%, sys=1.68%, ctx=1540, majf=0, minf=841115
  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=78590/26098, short=0/0
     lat (usec): 4=0.01%, 10=3.16%, 20=7.48%, 50=44.46%, 100=40.28%
     lat (usec): 250=4.38%, 500=0.03%, 750=0.01%, 1000=0.01%
     lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.07%
     lat (msec): 100=0.01%, 250=0.01%, 500=0.03%, 750=0.03%, 1000=0.02%
     lat (msec): 2000=0.02%, >=2000=0.02%

Run status group 0 (all jobs):
   READ: io=4,096MiB, aggrb=238MiB/s, minb=238MiB/s, maxb=238MiB/s, mint=17209msec, maxt=17209msec
  WRITE: io=4,096MiB, aggrb=21,438KiB/s, minb=21,438KiB/s, maxb=21,438KiB/s, mint=195648msec, maxt=195648msec

Run status group 1 (all jobs):
   READ: io=12,288MiB, aggrb=66,425KiB/s, minb=16,606KiB/s, maxb=17,089KiB/s, mint=184074msec, maxt=189430msec
  WRITE: io=4,096MiB, aggrb=22,141KiB/s, minb=5,535KiB/s, maxb=5,680KiB/s, mint=184584msec, maxt=189431msec

Disk stats (read/write):
  sda: ios=17443/64138, merge=0/1785133, ticks=187607/68619658, in_queue=68807237, util=95.59%
55.09user 39.07system 10:58.72elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k
8388920inputs+23231096outputs (27major+5473670minor)pagefaults 0swaps