Hi im planning on creating a site which logs muliple session variables
for each user. Would this kind of site eventually start to lag over
time bcos of server memory being used up to store session data or do
sessions use very little of system resources even for very popular
Unless you have a special handler that stores session data in memory,
session data is usually stored in a file of the form sess_<SES_ID>.
Having gazillion of these files open might slow down your server but
will not deplete of memory.