oct20 linperf

   1  dd if=/dev/zero of=/dev/null &
    2  top
    3  dd if=/dev/zero of=/dev/null &
    4  top
    5  killall dd
    6  top
    7  dd if=/dev/zero of=/dev/null &
    8  top
    9  cd /proc/
   10  ls
   11  cat interrupts | less
   12  top
   13  yum install -y git
   14  cd
   15  killall dd
   16  git clone https://github.com/sandervanvugt/perf
   17  git clone https://github.com/sandervanvugt/performance
   18  cd performance/
   19  ls
   20  cd ..
   21  git clone https://github.com/sandervanvugt/luth
   22  cd luth
   23  ./countdown 12
   24  cd
   25  top
   26  less /proc/meminfo
   27  vmstat 2 10
   28  vmstat 2 100
   29  killall firefox
   30  top
   31  sar -A
   32  cd /etc/cron.d/
   33  ls
   34  cd
   35  sar -A
   36  vmstat 2 5
   37  systemd-analyze
   38  systemd-analyze blame
   39  cd /proc
   40  cd sys
   41  ls
   42  cd vm
   43  ls
   44  cat swappiness
   45  echo 90 > swappiness
   46  cat swappiness
   47  vim /etc/sysctl.conf
   48  cd /etc/sysctl.d/
   49  ls
   50  ls -l
   51  vim 90-swap.conf
   52  cd /usr/lib/sysctl.d/
   53  ls
   54  vim 60-libvirtd.conf
   55  man proc
   56  cd
   57  yum install kernel-docs
   58  yum install kernel-doc
   59  luth/countdown 12
   60  cd /proc/sys
   61  ls /usr/lib/sysctl.d/
   62  ls
   63  cd vm
   64  ls
   65  less /proc/meminfo
   66  vmstat 2 5
   67  cd ../kernel/
   68  ls
   69  sysctl -a
   70  sysctl -a | wc
   71  man proc
   72  sysctl -a | grep panic
   73  cd /usr/share/doc/kernel-doc-4.18.0/
   74  ls
   75  cd Documentation/
   76  ls
   77  cd sysctl/
   78  ls
   79  less fs.txt
   80  systemctl status tuned
   81  cd
   82  tuned-adm
   83  tuned-adm list
   84  tuned-adm profile network-latency
   85  tuned-adm list
   86  cd /usr/lib/tuned/
   87  ls
   88  mkdir /etc/tuned/sander
   89  cd desktop/
   90  ls
   91  vim tuned.conf
   92  cp tuned.conf /etc/tuned/sander
   93  vim /etc/tuned/sander/tuned.conf
   94  vim /etc/sysctl.d/90-swap.conf
   95  reboot
   96  cat /proc/sys/vm/swappiness
   97  history | grep git
   98  cd performance/
   99  ls
  100  cp st* /etc/systemd/system/
  101  cd /etc/systemd/system/
  102  vim stress1.service
  103  vim stress2.service
  104  systemctl start stress1.service
  105  bg
  106  systemctl start stress2.service
  107  bg
  108  top
  109  killall dd
  110  systemctl set-property user.slice CPUShares=512
  111  systemctl set-property system.slice CPUShares=4096
  112  systemctl start stress1.service
  113  bg
  114  systemctl start stress2.service
  115  bg
  116  top
  117  history
  118  man 5 systemd.resource-control
  119  killall d
  120  killall dd
  121  systemctl edit sshd.service
  122  SYSTEMD_EDITOR=/usr/bin/vim
  123  systemctl edit sshd.service
  124  systemctl cat sshd.service
  125  systemctl status sshd.service
  126  yum install -y httpd
  127  systemctl enable --now httpd
  128  systemctl status httpd
  129  EDITOR=/usr/bin/bim
  130  EDITOR=/usr/bin/vim
  131  systemctl edit httpd.service
  132  systemctl status httpd.service
  133  systemctl stop httpd
  134  systemctl start httpd
  135  systemctl status httpd
  136  journalctl -u httpd
  137  journalctl
  138  systemd-cgls
  139  useradd linda -u 1001
  140  systemctl set-property --slice=user-1001.slice CPUShares=512
  141  pwd
  142  cd
  143  luth/countdown 12
  144  top
  145  ps aux
  146  cd /proc/5105
  147  ls
  148  less status
  149  cd
  150  echo h >/proc/sysrq-trigger
  151  dmesg
  152  echo f >/proc/sysrq-trigger
  153  su - linda
  154  history
  155  dmesg
  156  echo 1 > /proc/sys/vm/panic_on_oom
  157  echo f > /proc/sysrq-trigger
  158  cd /proc/6633
  159  cat cmdline
  160  ls
  161  cat oom_score
  162  ps aux | grep shell
  163  ps aux | grep gdm
  164  echo -1000 > oom_score_adj
  165  cat oom_score
  166  pwd
  167  cd
  168  systemctl show sshd.service
  169  export SYSTEMD_EDITOR=/usr/bin/vim
  170  systemctl edit
  171  systemctl edit sshd.service
  172  systemctl daemon-reload
  173  free -m
  174  cd /sys/block/sda/queue
  175  ls
  176  cat scheduler
  177  echo bfs > scheduler
  178  echo bfq > scheduler
  179  cat scheduler
  180  time dd if=/dev/zero of=/bigfile bs=1M count=1024
  181  cat scheduler
  182  echo none > scheduler
  183  time dd if=/dev/zero of=/bigfile bs=1M count=1024
  184  cd
  185  history