Message 361533 - Python tracker

> The GIL avoids any risk of race condition, no?

Looks like the GIL would affect performance more or less?

>_Py_IDENTIFIER() would only be a "key" and _PyUnicode_FromId() would >store the value somewhere in a hash table stored in PyInterpreterState.

+1.

IMHO, for those two cases, the simplest idea is move IDENTIFIER to moduleState which would increase more memory usage than InterpreterState.