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build: Cap build parallelism on i686.

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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'.
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Ludovic Courtès 2020-04-12 00:00:59 +02:00
parent f4ec5e1a98
commit 27a1e4fd10
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1 changed files with 10 additions and 2 deletions
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12
build-aux/compile-all.scm
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@ -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 @@ (define* (parallel-job-count #:optional (flags (getenv "MAKEFLAGS")))
(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 @@ (define (% completed total)
(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