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Yesterday, my supervisor told me that tmp-file-based session should be THE answer to session implementation, and I should abandon any idea of making sessions persistent.
He argues that file-based session is much faster and eaiser to use than other choices like db-based or memcached-based implementations.
What he said was really a shock to my past learning experience, so please tell me whether he was wrong and why?
Thanks in advance.
Your supervisor is smoking something. File-based sessions are persistent. You need need to move a disk head to get to them, unless they happen to be in the OS file cache. One disk head move pays for a lot of memecache.
And “easier” is relative. tmp-file based sessions are easy to set up, so he’s marginally right on that point.