Magento2 Install - Advanced Modules Configurations - where can I know each core modules function?

Question

While installing Magento2, on Advanced Modules Configurations page, I find there are 117 core modules already selected

e.g. Magento_AdvancedPricingImportExport

I believe disable modules I don't use improve performance a little

Where can I know each modules function? so that I can decide to install or not

Answer 1

Every module (as well as framework component) in Magento 2 has laconic readme file, e.g. page cache readme. Locate necessary readme file using pattern Magento/<ModuleName>/README.md