Comment 20 for bug 1685885

I tested this on xenial, bionic and cosmic by launching 2 identical lxd containers of each, one of which using the landscape-client/common from -proposed packages. Clients were registered in against the same account and left idle for a few hours before taking a reading:

  ps o rss,args `pgrep landscape-cli`

Here are the results which, as per test case, show the most noticeable improvement on xenial.

xenial-updates
  RSS COMMAND
254704 /usr/bin/python /usr/bin/landscape-client --daemon --pid-file /var/run/

xenial-proposed
  RSS COMMAND
46040 /usr/bin/python /usr/bin/landscape-client --daemon --pid-file /var/run/l

bionic-updates
  RSS COMMAND
33744 /usr/bin/python3 /usr/bin/landscape-client --daemon --pid-file /var/run/landscape/

bionic-proposed
  RSS COMMAND
30960 /usr/bin/python3 /usr/bin/landscape-client --daemon --pid-file /var/run/landscape/

cosmic-updates
  RSS COMMAND
33660 /usr/bin/python3 /usr/bin/landscape-client --daemon --pid-file /var/run/landscape/la

cosmic-proposed
  RSS COMMAND
30912 /usr/bin/python3 /usr/bin/landscape-client --daemon --pid-file /var/run/landscape/la