Hacker News Reader

| Pointer compression saves an average of 40% of memory.

This is really awesome. Can't wait it to be shipped everywhere.

I wonder if this is specific to v8 or could SpiderMonkey and JavascriptCore could benefits from the same optimisation technique.

It's used in other languages too, but how easy it is to apply to another JS engine depends on its implementation.

Nothing v8 exclusive about it though

I believe JVMs were the first to use pointer-compression.