Previously, I wrote Everyday Performance Rules for Ruby on Rails Developers. I will try to provide another round of good practices. I hope that will help you speed up your application as well. Rendering a collection is faster than calling a partial in a loop <%# Slower %> <% records.each do |record| %> <%= render "partial", record: record %> <% end %> <%# Faster %> <%= render partial: "partial", collection: records, as: :record %> Because render "partial" lookups for the partial N times and g...
