I installed dietpi on a raspi v3 about ~10 days ago. Just noticed a huge drop in CPU temp / used RAM recently. Attached a system stats screenshot and results of ‘free’ command to this post.
I gave it 1GB swap when I setup dietpi config (USB boot from a 120GB SSD drive). Any idea what’s going on here, maybe a dump of some of the stack into swap all at once? This machine usually never goes over a 0.5 load for the 15 minute average, when using raspberry pi os.