Autoptimize's cache size is getting big, consider purging the cache. Have a look at https://en-ca.wordpress.org/plugins/autoptimize/faq/ to see how you can keep the cache size under control. (site: http://www.savoiretcroire.ca)
Checking disk memory usage showed me that the cache for my current live site had actually reached 900 Mo, which is a 100 Mo more than that of the clone of my site I created not very long before I began to insert images into my live site. The size of the cache itself on the clone was 185 Mo.
So it would appear that indeed I need to fix this issue even before I continue to insert images into my site. Also I need to be doing some math so that the size of the pictures I insert do not become so huge that they unduly increase my costs of being on line.
This thread will be used to document what I discover and learn as I attempt to find solutions to the above observations, starting off with these articles that are mentioned in AO's email cut-and-pasted above:
- Autoptimize cache size: the canary in the coal mine;
- How to keep Autoptimize’s cache size under control (and improve visitor experience).
- I then clicked on the button «Save Changes and Empty Cache».