performance july23

[root@localhost ~]# history
    1  top
    2  ps aux | grep zombie
    3  kill 38120
    4  ps aux | grep zombie
    5  kill -SIGCHLD 38119
    6  ps aux | grep zombie
    7  kill 38119
    8  ps aux | grep zombie
    9  cat /etc/redhat-release
   10  cat /etc/os-release
   11  top
   12  dd if=/dev/zero of=/dev/null &
   13  top
   14  clear
   15  top
   16  dnf install -y git
   17  git clone https://github.com/sandervanvugt/performance
   18  cd performance/
   19  ls
   20  ./zombie
   21  ./countdown 12
   22  ps aux
   23  ps fax
   24  man taskset
   25  top
   26  taskset -p 6988
   27  taskset -pc 6988
   28  dd if=/dev/zero of=/dev/null &
   29  top
   30  taskset -pc 0 6988
   31  history
   32  top
   33  killall dd
   34  top
   35  reboot
   36  top
   37  less /proc/meminfo
   38  vmstat 2 100
   39  top
   40  reboot
   41  cd /proc/sys
   42  ls
   43  cd vm
   44  ls
   45  cat swappiness
   46  echo 30 > swappiness
   47  top
   48  cd
   49  top
   50  cd /proc/sys/vm/
   51  ls
   52  free -m
   53  grep ctive /proc/meminfo
   54  echo 3 > drop_caches
   55  free -m
   56  man proc
   57  history
   58  mount | grep proc
   59  cd /proc
   60  ls
   61  cd 2280
   62  ls
   63  cat cmdline
   64  cat status
   65  cd ../..
   66  cd proc
   67  ls
   68  less meminfo
   69  less cpuinfo
   70  lscpu
   71  ls
   72  cd sys
   73  ls
   74  less ../meminfo
   75  cd vm
   76  ls
   77  cat swappiness
   78  echo 33 > swappiness
   79  cat swappiness
   80  sysctl -a
   81  vim /etc/sysctl.conf
   82  vim /etc/sysctl.d/swappiness.conf
   83  vim /etc/sysctl.conf
   84  ls
   85  cd ..
   86  ls
   87  history -w
   88  sync
   89  echo h > sysrq-trigger
   90  dmesg
   91  history -w
   92  #echo c > /proc/sysrq-trigger
   93  history -w
   94  cd /proc/sys
   95  ls
   96  sysctl -a | wc -l
   97  cd vm
   98  ls
   99  cat dirty_expire_centisecs
  100  man sysctl
  101  top
  102  dmesg
  103  echo h > /proc/sysrq-trigger
  104  dmesg
  105  #echo f > /proc/sysrq-trigger
  106  history -w
  107  top
  108  cd /proc/sys/vm/
  109  ls
  110  cat oom_kill_allocating_task
  111  echo 1 > oom_kill_allocating_task
  112  history -w
  113  top
  114  cd /proc/sys/vm/
  115  ls
  116  cat oom_kill_allocating_task
  117  echo 1 > oom_kill_allocating_task
  118  history -w
  119  sync
  120  echo f > /proc/sysrq-trigger
  121  sysctl -a | grep swappi
  122  vim /etc/tuned/tuned-main.conf
  123  cd performance/
  124  ./countdown 12
  125  vim /etc/tuned/tuned-main.conf
  126  systemctl status tuned
  127  systemctl cat tuned
  128  tuned-adm list
  129  cd
  130  cd /sys/bus/cpu/devices/
  131  ls
  132  cat cpu1/online
  133  echo 0 > cpu1/online
  134  lscpu | less
  135  cd
  136  cd performance/
  137  ls
  138  cat stress1.service
  139  cat stress2.service
  140  cp stres* /etc/systemd/system
  141  systemctl daemon-reload
  142  systemctl start stress1
  143  systemctl start stress2
  144  top
  145  systemctl set-property system.slice CPUShares=8192
  146  top
  147  killall dd
  148  top
  149  history
  150  systemctl show sshd.service
  151  dnf install -y httpd
  152  systemctl edit httpd.service
  153  systemctl restart httpd
  154  systemctl status httpd
  155  systemctl edit httpd.service
  156  systemctl restart httpd.service
  157  systemctl status httpd.service
  158  systemctl show httpd.service
  159  cgtop
  160  systemd-cgtop
  161  cgls
  162  systemd-cgls
  163  iotop
  164  top
  165  cd /sys/block/sda/queue/iosched/
  166  ls
  167  cd ..
  168  ls
  169  pwd
  170  cat scheduler
  171  echo none > scheduler
  172  cat scheduler
  173  time dd if=/dev/zero of=/bigfiles bs=1M count=1024
  174  echo bfq > scheduler
  175  time dd if=/dev/zero of=/bigfiles bs=1M count=1024
  176  history
  177  reboot
  178  history