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(internal): lower default value of org-roam-db-gc-threshold (#872)

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The high value has been reported to cause significant slowdowns, so we
reset the default, and add documentation for its customization instead.
Ref #834
This commit is contained in:
Jethro Kuan
2020-06-28 15:16:14 +08:00
committed by GitHub
parent 610d4ced85
commit e33c3bcb3f
4 changed files with 56 additions and 3 deletions
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9
org-roam-db.el
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@ -60,13 +60,18 @@ when used with multiple Org-roam instances."
:type 'string
:group 'org-roam)
(defcustom org-roam-db-gc-threshold most-positive-fixnum
(defcustom org-roam-db-gc-threshold gc-cons-threshold
"The value to temporarily set the `gc-cons-threshold' threshold to.
During large, heavy operations like `org-roam-db-build-cache',
many GC operations happen because of the large number of
temporary structures generated (e.g. parsed ASTs). Temporarily
increasing `gc-cons-threshold' will help reduce the number of GC
operations, at the cost of temporary memory usage."
operations, at the cost of temporary memory usage.
This defaults to the original value of `gc-cons-threshold', but
tweaking this number may lead to better overall performance. For
example, to reduce the number of GCs, one may set it to a large
value like `most-positive-fixnum'."
:type 'int
:group 'org-roam)