[kevingadd]

I don't understand this post or why it is upvoted. Where's the trick? What does the trick do? It feels like half of the post is missing.

[diggan]

It seems like it boils down to use oj[0] as a parser I think...

[0] https://github.com/ohler55/oj

[ekimekim]

That's not a trick. That's "use a faster library".

I guess the trick might be "always profile, because performance bottlenecks might not be where you expect".

[hamburglar]

The trick is writing something completely uninteresting and getting people to talk about it on HN anyway.