apt-get update apt-get upgrade rpi-upate

Etat de la mémoire:

free -htl

Mise en place du swap ou état:

dphys-swapfile setup

Déactivation:

dphys-swapfile swapoff

Supression

dphys-swapfile uninstall

/etc/apache2/mods-enabled/mpm_prefork.conf

<IfModule mpm_prefork_module>
      StartServers                     1
      MinSpareServers           0
      MaxSpareServers          1
      MaxRequestWorkers         5
      MaxConnectionsPerChild   0
</IfModule>