Here I'm going to discuss about the PHP and JSP performance technically, this is a summary what I found from the googling about the performacne check on PHP vs JSP. But actual results may vary from this but not as the whole, according to my past experiences working with PHP and JSP I could sort-out some possible language issues in technically.

301 Redirect

301 redirect is the most efficient and Search Engine Friendly method for webpage redirection. It's not that hard to implement and it should preserve your search engine rankings for that particular page. If you have to change file names or move pages around, it's the safest option. The code "301" is interpreted as "moved permanently".

You can Test your redirection with Search Engine Friendly Redirect Checker

Below are a Couple of methods to implement URL Redirection.

IIS Redirect