18.2 Garbage Collection

During the cache-build process, Org-roam generates a lot of in-memory data-structures (such as the Org file’s AST), which are discarded after use. These structures are garbage collected at regular intervals (see (elisp)info:elisp#Garbage Collection).

Org-roam provides the option org-roam-db-gc-threshold to temporarily change the threshold value for GC to be triggered during these memory-intensive operations. To reduce the number of garbage collection processes, one may set org-roam-db-gc-threshold to a high value (such as most-positive-fixnum):

(setq org-roam-db-gc-threshold most-positive-fixnum)