kkebreau pushed a commit to branch wip-gnome-updates
in repository guix.
commit a633c7bc3527f7a9c9fd0019a7ba306fe5af6fbe
Author: Ludovic Courtès <[email protected]>
Date: Wed Nov 6 22:02:34 2019 +0100
derivations: Use a regular hash table for the module cache.
The hit rate of the 'add-data-to-store' cache goes from 10% to 4% on:
guix build -e '(@@ (gnu packages libreoffice) libreoffice)' -nd
* guix/derivations.scm (%module-cache): Turn into a regular hash table.
It didn't make sense to use a weak-value hash table given that values
are pairs.
---
guix/derivations.scm | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/guix/derivations.scm b/guix/derivations.scm
index bde9370..6cdf55b 100644
--- a/guix/derivations.scm
+++ b/guix/derivations.scm
@@ -1208,7 +1208,7 @@ they can refer to each other."
(define %module-cache
;; Map a list of modules to its 'imported+compiled-modules' result.
- (make-weak-value-hash-table))
+ (make-hash-table))
(define* (imported+compiled-modules store modules #:key
(system (%current-system))
