I've used SQLite a bit, but not enough to say I know where you run into performance issues. I would anticipate though, if it's similar to fread/fwrite with some

I've used SQLite a bit, but not enough to say I know where you run into performance issues. I would anticipate though, if it's similar to fread/fwrite with some marginal overhead for dealing with SQL, after considering most queries aren't very complex, I think most people are going to have a hard time hitting those limits. And that's assuming you're making queries every time an event occurs versus persisting data at particular points in time.