Comment by jepler

My mind just balks at the idea of having so much source that a 2020s computer could take hours to index it. ctags is nothing special (both in terms of optimization but also the level of detail it gets to: just global function identifiers) and looks like it runs at about 400MB/s on a single core of an i5-1235U. But still it looks ctags could process about 100TB in 4 hours across 16 threads on a workstation class CPU...