Support Ruby 3.3's `Process.warmup` before fork about puma

[dentarg]

The functionality is somewhat similar to the #2925, but (hopefully) performs better.

Is it possible to find out? Can we construct benchmarks?

[nateberkopec]

One of the reasons we removed nakayoshi fork was it's tendency to surface extremely difficult to debug problems in C-extensions due to compaction. I'm not sure that will have really improved since the time that the feature was considered.

[casperisfine]

was it's tendency to surface extremely difficult to debug problems in C-extensions due to compaction.

That is indeed a problem. I (and others) fixed many compaction issues in popular extensions, but there is a long tail of potential problems in less popular ones.

I'm always happy to help debug and fix these, but as you mention, often the problem is to identify the extension responsible for it. In most case it's not too hard, but sometimes it's super tricky.