When you want to minimize transfers between disk and ram and your OS does paging, then it makes sense to put unfrequently used data (like error messages) togeth

When you want to minimize transfers between disk and ram and your OS does paging, then it makes sense to put unfrequently used data (like error messages) together in a page with other unfrequently used data. It's mostly what you would do on a cache line level (instead of a page level) to minimize transfers between main memory and cache.