I'd like to add a way to get the size of Ruby's symbol table. This is currently possible by using
Symbol.all_symbols, however it builds a new array every time it's invoked which is pretty inefficient.
The main use case for this would be to assist in detecting accidental symbol creation.
I have a PR open (https://github.com/ruby/ruby/pull/639) that adds a
Symbol.count method but this could also be added in the output of
Updated by kosaki (Motohiro KOSAKI) about 7 years ago
I understand symbol table detection is important for tuning ruby nowadays. But as far as I know, it is just because past ruby can't gc symbols.
Now, ruby trunk has symbol GC. (https://bugs.ruby-lang.org/issues/9634).
So, symbol table size is no longer important tuning parameter.
If you have another use case, please elaborate more detail.