performancepaper VS slingshot

There is a review of the study at https://github.com/joinr/performancepaper. Basically by using optimization tricks (recur for recursive function call, unchecked math, using Java types, etc.) Tom meets/beats the performance of Java.

I did a contrast with someone's graduate thesis that aimed to analyze clojure vs. java performance and made some weak claims. The rep is here, and it's really the org file. Sort of a worked example of optimizing code.

I often see people knocking on Clojure saying its performance is bad when they are still not familiar with all the core library has to offer and what idiomatic performant Clojure can look like. Take a look here for some examples by joinr

When it comes to error handling and exceptions, I feel like there's a missed opportunity in not including something like slingshot in clojure.core. Throwing ex-info exceptions is nice, but there's no nice way for catching them built in, as catch can only match based on the exception class. You'll either have to use slingshot or write code to match them manually.