I was wondering how to do the performance comparison on my own, and found a way
ozkanpakdil.github.io/j…
it also gives link to the code itself how it is tested. so eclipse collections are not far more faster, just personal note 🤓 feel free to correct me if I made any mistake on the code or the page.
How fast are common Java data structures (10M operations)?
HashMap vs TreeMap vs ArrayList vs LinkedList
HashMap.get() → ~140 ms
TreeMap.get() → ~420 ms