Based on a user comment in https://github.com/microsoft/vscode-cpptools/issues/3220 for 12 IntelliSense processes using >600 MB each (or more?) on a machine with 8 GB RAM. Right now, our heuristic uses core count and not total available memory. https://github.com/microsoft/vscode-cpptools/issues/4036 is tracking the Find All References case. https://github.com/microsoft/vscode-cpptools/issues/4038 (Find All References) caching could be added more easily if this were fixed.