guix-data-service/scripts/guix-data-service-process-job.in
Christopher Baines c1d2f3a1b7 Add meaningful parallelism to processing jobs
Make parallel use of inferiors when computing channel instance derivations,
and when extracting information about a revision. This should allow for some
horizontal scalability, reducing the impact of additional systems for which
derivations need computing.

This commit also fixes an apparent issue with package replacements, as
previously the wrong id was used, and this hid some issues around
deduplication.
2024-01-18 15:34:40 +00:00

85 lines
2.9 KiB
Text

#!@GUILE@ --no-auto-compile
-*- scheme -*-
-*- geiser-scheme-implementation: guile -*-
!#
;;; Guix Data Service -- Information about Guix over time
;;; Copyright © 2016, 2017 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
;;;
;;; This file is part of guix-data-service.
;;;
;;; guix-data-service is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or
;;; (at your option) any later version.
;;;
;;; guix-data-service is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with the guix-data-service. If not, see <http://www.gnu.org/licenses/>.
(use-modules (srfi srfi-1)
(srfi srfi-37)
(ice-9 match)
(ice-9 suspendable-ports)
(fibers)
(guix-data-service database)
(guix-data-service data-deletion)
(guix-data-service model package-derivation-by-guix-revision-range)
(guix-data-service jobs load-new-guix-revision))
(setvbuf (current-output-port) 'line)
(setvbuf (current-error-port) 'line)
(setlocale LC_ALL "en_US.UTF-8")
;; Make stack traces more useful
(setenv "COLUMNS" "256")
(install-suspendable-ports!)
(define %options
(list (option '("skip-system-tests") #f #f
(lambda (opt name _ result)
(alist-cons 'skip-system-tests #t result)))
(option '("parallelism") #t #f
(lambda (opt name arg result)
(alist-cons 'parallelism
(string->number arg)
(alist-delete 'parallelism
result))))))
(define %default-options
'((parallelism . 1)))
(define (parse-options args)
(args-fold
args %options
(lambda (opt name arg result)
(error "unrecognized option" name))
(lambda (arg result)
(alist-cons
'arguments
(cons arg
(or (assoc-ref result 'arguments)
'()))
(alist-delete 'arguments result)))
%default-options))
(let ((opts (parse-options (cdr (program-arguments)))))
(match (assq-ref opts 'arguments)
((job)
(with-fluids ((%file-port-name-canonicalization 'none))
(run-fibers
(lambda ()
(process-load-new-guix-revision-job
job
#:skip-system-tests? (assq-ref opts 'skip-system-tests)
#:parallelism (assq-ref opts 'parallelism)))
#:hz 0
#:parallelism 1
#:drain? #t)))))