I am asking since I am trying to understand if this widget is causing my server to overuse CPU or memory.
But either way – it’s interesting to know.
How often does the RSS widget get updates?
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RSS widget uses
fetch_feed()function, which is setting default cache lifetime to 43200 seconds (12 hours).Since this value is filtered it can be overridden (as can feed cache overall). I did encounter plugin once, whose developer citing performance reasons completely disabled feed caching for all feeds.