The size of a project has a large effect on the performance of certain features in Source Insight. The project size can be measured in number of files, and in number of declared symbols.
To find out how large your project is, use the Project > Project Report command and note the top lines of the report. At the top of the project report, Source Insight prints the number of files, the number of symbols, and the number of symbol index entries in the project. You can also see these same statistics in the Project > Rebuild Project dialog box at the bottom of the dialog box. (You do not have to rebuild the project to see the statistics.)
Source Insight 3.5 handles even more symbol information than version 2.1 did. However, the symbol indexes have grown in size. This may affect very large projects.