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43 votes
6 answers
38k views

Which PHP (opcode) cache one should use and why?

I keep hearing about some PHP (opcode) caches like - APC, XCache, Memcache, eAccelerator, etc. But I couldn't ever figure out how to go about choosing one. Apart from performance benefit, which a ...
rahul286's user avatar
  • 1,647
25 votes
5 answers
32k views

Can a pool of memcache daemons be used to share sessions more efficiently?

We are moving from a 1 webserver setup to a two webserver setup and I need to start sharing PHP sessions between the two load balanced machines. We already have memcached installed (and started) and ...
Tom's user avatar
  • 4,297
0 votes
1 answer
390 views

is there any point running APC **and** memcached concurrently

Do APC and Memcached cache the same data? I understand that APC caches both files and objects/variables whereas memcached is object-only, but does memcached offer anything that APC doesn't? I've ...
Jonathan Day's user avatar