Application Caching at Stack Overflow

Nick Craver has a long post on how Stack Overflow does application caching:

For everyone who hates caching, this is the section for you! Yes, I’m totally playing both sides.

Given the above and how drastic the wins are, why wouldn’t we cache something? Well, because every single decision has trade-offs. Every. Single. One. It could be as simple as time spent or opportunity cost, but there’s still a trade-off.

This is a long but very useful post.

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