Re:In-Memory caching: Why we can't just trust the database t...
by lhorn on Wednesday November 12, 2008 @12:55AM
(#361489)
Yeah. Every time when someone tries to make a case for memchached they bring in Facebook and LiveJournal.
Well guess what: you aren't Facebook. You don't serve 21,000 requests per second. And you never will. Go and look at the size of your MySQL tables, then look at how much RAM your server has and what percentage of it is allocated to filesystem cache and how many real I/O reads/writes your hardware RAID does per second. Then come back and tell me again why do "we need to switch to memcached"?
Well guess what: you aren't Facebook. You don't serve 21,000 requests per second. And you never will. Go and look at the size of your MySQL tables, then look at how much RAM your server has and what percentage of it is allocated to filesystem cache and how many real I/O reads/writes your hardware RAID does per second. Then come back and tell me again why do "we need to switch to memcached"?