I was wondering what some people's opinions on saving php sessions to files vs database are - concerning performance speed and memory usage.
If you have a dedicated server with about 100 daily users who are consistently jumping pages (while logged in of course), would the server perform easier reading the session files from the typical folder: /tmp (or where php.ini states) - or if the session ids are stored in the mysql database?
Also, the users are constantly searching the database for info, and downloading files.
Naturally there are probably other variables that may affect server performance. And perhaps many I wouldn't think of.
Does anyone have some insight? I'm obviously interested in optimizing server performance - concerning session handling.