Baloo is the file indexer for KDE and its no surprise that after the recent big update it would need to run again, but something is seriously not working correct.
I noticed that my system felt sluggish after the update and today i discovered why.
Baloo was constantly using 10% of my CPU, 3 GB of ram and would perma read with 10mb/s from my SSD.
And its been doing this ever since the update.
Would show me its index database is 8GB big with 1.5 million files in the index. I dont even remotely have that many files on my system.
When going into “File Search” in the options ( just search for it in the KDE menu ) and disabling File Search i was asked if i want to remove the currently existing index. In this menu it showed the size of 160mb, which was in vast contrast to the 8GB file i was looking at in Dolphin.
So i clicked “yes delete it” ( which removed the 8gb index file), rebooted and now everything is back to normal.
This seems to have been an issue 2-3 years ago also :