Yes, Russ Cox's codesearch is great, I use it to search in around ~50 millions lines of code. A query is so fast I never bothered to measure it, and reindexing

Yes, Russ Cox's codesearch is great, I use it to search in around ~50 millions lines of code. A query is so fast I never bothered to measure it, and reindexing the whole thing only takes a minute or two on a 5 year old laptop. It's so fast I reindex everything at every shell login.