I recently decided to try out memcached (not memcache, memcacheD) for my PHP session handling on two separate VPS servers, one with 768MB of RAM and one with 2GB. On both servers, when I enabled memcached for session handling, the website response time became very slow; way slower than when using PHP's default file handler. Both servers are non-production and see virtually no traffic, so I'm boggled. Why would memcached cause so much slowdown? From what I've read, it should speed up session handling.