Nice to see that they made good usage of my pictures that I have to draw manually with postscript.

I use them also daily to come up with similar optimizations, but on a grander scheme, to support proper type optimizations (which might reach the php/lua/javascript performance range then).

But to be fair: Bodyless NV's and cached class pointers for methods are the biggest win in 5.22. OP_SIGNATURE didn't make it.