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How does cache work?

Name: Anonymous 2012-12-23 6:24

I mean, from the perspective of the program at hand. Is it just a bunch variables that you load data too from your DB or what?

I know there are libraries like memcached that take care of this. How do they cache stuff?

Name: Anonymous 2012-12-23 7:15

They use an ATM to receive cache.

Name: Anonymous 2012-12-23 8:07

>>1
How a cache is implemented is context dependant. Conceptually a cache is just some place where you store stuff you frequently access. Memcache , redis etc. implement a cache by storing values in the RAM. Fetching from RAM is faster. Since the number of objects you store in a cache less than all the data put together, look up is faster. In the case of memcache or redis, they are an alternative to traditional Databases where all data is stored in the hard disk.

Name: Anonymous 2012-12-23 10:29

>>3
Clear, concise. If I wasn't a dude I'd have your baby.

Name: Anonymous 2012-12-23 14:53

Clear, concise. If I wasn't a Boo I'd have your Boo.

Name: Anonymous 2012-12-23 15:24

>>3
Good job doing his homework

Name: Anonymous 2012-12-23 18:08

>>6
God forbid someone talks about actual programming here, they might end up helping someone by mistake! Think of the children!

How does cache work?

1 Name: Anonymous 2012-12-23 6:24

2 Name: Anonymous 2012-12-23 7:15

3 Name: Anonymous 2012-12-23 8:07

4 Name: Anonymous 2012-12-23 10:29

5 Name: Anonymous 2012-12-23 14:53

6 Name: Anonymous 2012-12-23 15:24