me/guix
Archived
1
0
Fork 0
Code Activity

gexp: Cache the module to derivation mappings.

Browse source 
This reduces the number of 'add-data-to-store' cache lookups from 3329
to 2743 (hit rate: 27% to 11%) when running:

  GUIX_PROFILING=add-data-to-store-cache guix build libreoffice -nd

Execution time of "guix build libreoffice -nd" goes from 1.86s to 1.80s.

* guix/gexp.scm (imported+compiled-modules): Wrap body in 'mcached'.
This commit is contained in:
Ludovic Courtès 2019-10-27 19:12:11 +01:00
parent c57e417eff
commit f5fca9a82c
No known key found for this signature in database
GPG key ID: 090B11993D9AEBB5
1 changed files with 18 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
guix/gexp.scm
View file

@ -660,6 +660,7 @@ names and file names suitable for the #:allowed-references argument to
(module-path %load-path)) (module-path %load-path))
"Return a pair where the first element is the imported MODULES and the "Return a pair where the first element is the imported MODULES and the
second element is the derivation to compile them." second element is the derivation to compile them."
(mcached equal?
(mlet %store-monad ((modules (if (pair? modules) (mlet %store-monad ((modules (if (pair? modules)
(imported-modules modules (imported-modules modules
#:system system #:system system
@ -674,7 +675,9 @@ second element is the derivation to compile them."
#:deprecation-warnings #:deprecation-warnings
deprecation-warnings) deprecation-warnings)
(return #f)))) (return #f))))
(return (cons modules compiled)))) (return (cons modules compiled)))
modules
system extensions guile deprecation-warnings module-path))
(define* (lower-gexp exp (define* (lower-gexp exp
#:key #:key