Maciej has said repeatedly (including on HN) that disk is the bottleneck keeping him off Linode and VPS in general. Not all web apps use resources in the same

Maciej has said repeatedly (including on HN) that disk is the bottleneck keeping him off Linode and VPS in general. Not all web apps use resources in the same way; you're quite likely making an apples and oranges comparison here (though you don't say what your own web app actually does). It makes sense that Pinboard hits the disk a lot because there's not a ton of shared data -- each user tends to have his own trove of data. Yes, certain URLs will be bookmarked a lot but each bookmark can have different access restrictions, summary data, tags and so on. And no one bookmark is going to make up a big percentage of hits -- you're talking about a ton of bookmarks, each accessed rarely. It sounds a lot more like webmail than, say, a blog in terms of access patterns. You have questions, and it's nice that you (eventually) asked them and admitted all that you DON'T know about Pinboard. But you should probably ask them before you dole out unsolicited advice, not after.