From ac19950507e941b6263f62f4ee4e8934c1b1598e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Sun, 27 Oct 2019 22:42:59 +0100
Subject: [PATCH] gnu: bootstrap: Cache the 'bootstrap-executable' origins.
This reduces the number of lookups in the 'add-data-to-store' cache from
2705 to 2685 (hit rate: 10% to 9%) when running:
GUIX_PROFILING=add-data-to-store-cache guix build libreoffice -nd
* gnu/packages/bootstrap.scm (raw-build)[->store]: Use 'lower-object'
instead of 'origin->derivation'. This allows the origin-to-derivation
mapping to be cached.
---
gnu/packages/bootstrap.scm | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/gnu/packages/bootstrap.scm b/gnu/packages/bootstrap.scm
index 363c99c7c38..c6e3c697e68 100644
--- a/gnu/packages/bootstrap.scm
+++ b/gnu/packages/bootstrap.scm
@@ -33,6 +33,7 @@ (define-module (gnu packages bootstrap)
#:use-module ((guix derivations)
#:select (derivation derivation-input derivation->output-path))
#:use-module ((guix utils) #:select (gnu-triplet->nix-system))
+ #:use-module ((guix gexp) #:select (lower-object))
#:use-module (guix memoization)
#:use-module (guix i18n)
#:use-module (srfi srfi-1)
@@ -348,8 +349,8 @@ (define* (raw-build store name inputs
#:allow-other-keys)
(define (->store file)
(run-with-store store
- (origin->derivation (bootstrap-executable file system)
- system)))
+ (lower-object (bootstrap-executable file system)
+ system)))
(let* ((tar (->store "tar"))
(xz (->store "xz"))
--
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