Custom Fields and performance

In the case of custom fields- if you fetch them in a single query to the database, fetching one or ten is not going to differ much, it’s the same relatively simple query in both instances. If you were to do a lot of complex meta queries on those fields you’d definitely see a performance hit.

I think same for taxonomy, if you’re doing complex taxonomy queries, that’s a big hit. Simple queries to fetch terms are relatively cheap.

Searching will certainly tax the server more if you’ve got ten times as much data, text searches are pretty expensive.

Leave a Comment