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authorLudovic Courtès <ludo@gnu.org>2020-04-12 00:00:59 +0200
committerLudovic Courtès <ludo@gnu.org>2020-04-12 00:00:59 +0200
commit27a1e4fd109f6df9f687958cfead0d3e41e330aa (patch)
tree74251b4bd1298e84856d807723001b6c54a4ca0c
parentf4ec5e1a9823a66c27fe2bc033db7b58b29edfef (diff)
build: Cap build parallelism on i686.
Works around <https://bugs.gnu.org/40522>. * build-aux/compile-all.scm (parallel-job-count*): New procedure. <top level>: Use it instead of 'parallel-job-count'.
-rw-r--r--build-aux/compile-all.scm12
1 files changed, 10 insertions, 2 deletions
diff --git a/build-aux/compile-all.scm b/build-aux/compile-all.scm
index e9f3e957d9..ad75e33a85 100644
--- a/build-aux/compile-all.scm
+++ b/build-aux/compile-all.scm
@@ -1,6 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
-;;; Copyright © 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2017, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -79,6 +79,14 @@ to 'make'."
(current-processor-count))))
(loop tail)))))))))
+(define (parallel-job-count*)
+ ;; XXX: Work around memory requirements not sustainable on i686 above '-j4'
+ ;; or so: <https://bugs.gnu.org/40522>.
+ (let ((count (parallel-job-count)))
+ (if (string-prefix? "i686" %host-type)
+ (min count 4)
+ count)))
+
(define (% completed total)
"Return the completion percentage of COMPLETED over TOTAL as an integer."
(inexact->exact (round (* 100. (/ completed total)))))
@@ -95,7 +103,7 @@ to 'make'."
(lambda ()
(compile-files srcdir (getcwd)
(filter file-needs-compilation? files)
- #:workers (parallel-job-count)
+ #:workers (parallel-job-count*)
#:host host
#:report-load (lambda (file total completed)
(when file