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03/03: store: Micro-optimize object cache lookup.
From: |
guix-commits |
Subject: |
03/03: store: Micro-optimize object cache lookup. |
Date: |
Fri, 19 Feb 2021 16:41:45 -0500 (EST) |
civodul pushed a commit to branch wip-build-systems-gexp
in repository guix.
commit cfb9da7f67cbbcb762688fab2e8ed98b43d0cd53
Author: Ludovic Courtès <ludo@gnu.org>
AuthorDate: Fri Feb 19 22:30:30 2021 +0100
store: Micro-optimize object cache lookup.
This avoids a closure allocation when 'lookup-cached-object' is called.
* guix/store.scm (lookup-cached-object): Avoid optional/keyword
arguments and inline.
(%mcached): Adjust accordingly.
---
guix/store.scm | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/guix/store.scm b/guix/store.scm
index 2157c52..9c6d9cd 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -1863,8 +1863,7 @@ and RESULT is typically its derivation."
(lambda (x y)
#t)))
-(define* (lookup-cached-object object #:optional (keys '())
- #:key (vhash-fold* vhash-foldq*))
+(define-inlinable (lookup-cached-object object keys vhash-fold*)
"Return the cached object in the store connection corresponding to OBJECT
and KEYS; use VHASH-FOLD* to look for OBJECT in the cache. KEYS is a list of
additional keys to match against, and which are compared with 'equal?'.
@@ -1895,7 +1894,7 @@ Return #f on failure and the cached result otherwise."
OBJECT/KEYS, or return its cached value. Use VHASH-CONS to insert OBJECT into
the cache, and VHASH-FOLD* to look it up."
(mlet %store-monad ((cached (lookup-cached-object object keys
- #:vhash-fold*
vhash-fold*)))
+ vhash-fold*)))
(if cached
(return cached)
(>>= (mthunk)