On Mon, 16 Dec 2024 at 14:26, Jonathan Wakely <jwak...@redhat.com> wrote: > > I've pushed this patch series now, and I hope I'm done with > refactoring _Hashtable. > > I see about a 2% reduction in memory and in compilation time for an > explicit instantiation of std::unordered_list<std::string> when
For a translation unit that does: template class std::unordered_set<int>; template class std::unordered_set<std::string>; template class std::unordered_map<int, int>; template class std::unordered_map<std::string, int>; I see a bigger improvement for -O2, between 5% and 10%, with fewer entries (and shorter entries) in the compiler's string pool. > comparing r15-5031-gdd08cdccc36d08 to current trunk. It's not huge, > but it's something, and I find the code easier to understand now.
