TClass::GetClass hoards memory when called for numerical types

[pcanal]

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• Checked for duplicates

Description

As reported at https://root-forum.cern.ch/t/repeatedly-mapping-branches-slowly-fills-memory/63412, TClass::GetClass("unsigned int") (either called directly or indirectly with a type_info) will hoard memory when doing look ups on unsigned int.

Reproducer

while(1)
   TClass::GetClass("unsigned int");

ROOT version

any v6 up to v6.36.00

Installation method

any

Operating system

any

Additional context

No response

[ferdymercury]

Maybe related #9029

Edit: oh i see you already mentioned it in the PR, thanks

[pcanal]

This issue is a sub-set of #9029.

[github-actions]

Hi @pcanal,

It appears this issue is closed, but wasn't yet added to a project. Please add upcoming versions that will include the fix, or 'not applicable' otherwise.

Sincerely,
🤖