This blog post is the sixth in a series about my work building and optimizing the Plush language interpreter and virtual machine. The previous one was Speeding Up the Plush Garbage Collector. In the last post, I explained how a few simple changes made the copying GC over 16x faster, and brought the collection time for a million objects down to around 7 ms. I'm having a lot of fun optimizing Plush just for the sake of it, but I'm also doing it with the goal in mind of being able to make the langu...