<domain type='lxc'>
  <name>$name</name>
  <memory>32768</memory>
  <os>
    <type>exe</type>
    <init>/sbin/init</init>
  </os>
  <vcpu>1</vcpu>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/libexec/libvirt_lxc</emulator>
    <filesystem type='mount'>
      <source dir='/vservers/$name/'/>
      <target dir='/'/>
    </filesystem>
    <interface type='network'>
      <source network='default'/>
      <target dev='veth%xid'/>
    </interface>
    <console type='pty' />
  </devices>
</domain>

<domain type='lxc'>
  <name>$name</name>
  <memory>524288</memory>
  <os>
    <type>exe</type>
    <init>/sbin/init</init>
  </os>
  <features>
    <acpi />
  </features>
  <vcpu>1</vcpu>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/libexec/libvirt_lxc</emulator>
    <filesystem type='mount'>
      <source dir='/vservers/$name/'/>
      <target dir='/'/>
    </filesystem>
    <interface type='network'>
      <source network='default'/>
      <target dev='veth%xid'/>
    </interface>
    <console type='pty' />
  </devices>
</domain>

Raise the default memory to 512MB.
LXC-3: Raise the default memory to 512MB.
