The Ubuntu Desktop Team is trying to decide whether to install tracker by default in Ubuntu 18.04 LTS. Tracker is a file indexing service and provides several benefits if installed. On the other hand, there are reports of tracker sometimes causing high CPU or other performance issues.
Therefore, this is a call for testing. It would be a big help if anyone can provide specific data about the performance impact of installing and enabling tracker.
How to Install
Run this command in a terminal in either Ubuntu 17.10 or 18.04 then log out and log back in:
sudo apt install tracker
It speeds up searching for files in the Files app.
It enables full-text search in the Files app. In other words, you can look for files that contain specific words, instead of searching just by filename.
It allows the Batch Rename feature in the Files app able to rename based on file metadata. For instance, you can use the Artist name for properly tagged music files as part of the new filename.
It enables file and folder search in the Activities Overview on GNOME.
You can customize the folders it indexes from Settings > Search > gear button.
Tracker is required by some GNOME apps that aren’t installed by default in Ubuntu 17.10 like Music and Photos so it might already be installed on your computer.