Hi Ludovic, Ludovic Courtès writes: > Since I upgraded to Emacs 27.1, its memory consumption grows without > bounds, to the point that it gets OOM-killed after just a couple of > hours (meaning that it’s used most of the 16G of RAM of my laptop!). > > Does that ring a bell to anyone? I have 50+ ^emacs- packages in my > profile; any clues on what could be the cause before diving further? Here's another data point: although I haven't paid attention to the memory consumption of Emacs 27.1, I've used it successfully for at least 10 hours at a time (probably more) on my X200 with only 4G of RAM. I use 'emacs-no-x-toolkit' with only a few emacs packages: emacs-no-x-toolkit emacs-paredit emacs-magit emacs-geiser emacs-org-caldav emacs-nov-el notmuch I haven't actually used 'emacs-org-caldav' or 'emacs-nov-el' recently. Paredit, Geiser, Magit, and Notmuch's Emacs mail client are the only out-of-tree Emacs packages that I actively use. Mark (boring Emacs user :)