(Thanks for the link, I was looking at the comments, hehe)
Results after testing the devel snapshot v0.9.5+32-gdab0aec (linux-amd64):
- A first (strange) run started with 1.5GB (right from the start), and was reaching 1.8GB when I tried to close it because it was using too much CPU (3 cores for about 25 minutes). The shutdown from the GUI didn’t work, so I had to kill it.
- A second run started with 220MB, reached 1.4GB during the scan and stabilized there (no more wild CPU usage, but kept the RAM occupied). [update] I left this running, and now the RAM usage dropped to 280MB.