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* gnu/services/linux.scm (<zram-device-configuration>): New record. (zram-device-service-type): New variable. * doc/guix.texi (Linux Services): Document it. * tests/services/linux.scm (zram-swap-device-test): New tests.
94 lines
3.5 KiB
Scheme
94 lines
3.5 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
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;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (tests services linux)
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#:use-module (ice-9 match)
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#:use-module (gnu packages linux)
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#:use-module (gnu services linux)
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#:use-module (guix gexp)
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#:use-module (srfi srfi-64))
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;;; Tests for the (gnu services linux) module.
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(test-begin "linux-services")
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;;;
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;;; Early OOM daemon.
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;;;
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(define earlyoom-configuration->command-line-args
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(@@ (gnu services linux) earlyoom-configuration->command-line-args))
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(define %earlyoom-configuration-sample
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(earlyoom-configuration
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(minimum-available-memory 10)
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(minimum-free-swap 20)
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(prefer-regexp "icecat")
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(avoid-regexp "guix-daemon")
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(memory-report-interval 60)
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(ignore-positive-oom-score-adj? #f)
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(run-with-higher-priority? #t)
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(show-debug-messages? #f)
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(send-notification-command "python \"/some/path/notify-all-users.py\"")))
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(test-equal "earlyoom-configuration->command-line-args"
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(list (file-append earlyoom "/bin/earlyoom")
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"-m" "10" "-s" "20" "--prefer" "icecat"
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"--avoid" "guix-daemon" "-r" "60" "-p"
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"-N" "python \"/some/path/notify-all-users.py\"")
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(earlyoom-configuration->command-line-args %earlyoom-configuration-sample))
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;;;
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;;; Zram swap device.
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;;;
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(define zram-device-configuration->udev-string
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(@@ (gnu services linux) zram-device-configuration->udev-string))
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(define %zram-swap-device-test-1
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(zram-device-configuration
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(size "2G")
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(compression-algorithm 'zstd)
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(memory-limit "1G")
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(priority 42)))
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(test-equal "zram-swap-device-test-1"
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"KERNEL==\"zram0\", ATTR{comp_algorithm}=\"zstd\" ATTR{disksize}=\"2G\" ATTR{mem_limit}=\"1G\" RUN+=\"/run/current-system/profile/sbin/mkswap /dev/zram0\" RUN+=\"/run/current-system/profile/sbin/swapon --priority 42 /dev/zram0\"\n"
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(zram-device-configuration->udev-string %zram-swap-device-test-1))
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(define %zram-swap-device-test-2
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(zram-device-configuration
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(size 1048576) ; 1M
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(compression-algorithm 'lz4)))
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(test-equal "zram-swap-device-test-2"
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"KERNEL==\"zram0\", ATTR{comp_algorithm}=\"lz4\" ATTR{disksize}=\"1048576\" RUN+=\"/run/current-system/profile/sbin/mkswap /dev/zram0\" RUN+=\"/run/current-system/profile/sbin/swapon /dev/zram0\"\n"
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(zram-device-configuration->udev-string %zram-swap-device-test-2))
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(define %zram-swap-device-test-3
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(zram-device-configuration
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(memory-limit (* 512 1000))))
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(test-equal "zram-swap-device-test-3"
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"KERNEL==\"zram0\", ATTR{comp_algorithm}=\"lzo\" ATTR{disksize}=\"1G\" ATTR{mem_limit}=\"512000\" RUN+=\"/run/current-system/profile/sbin/mkswap /dev/zram0\" RUN+=\"/run/current-system/profile/sbin/swapon /dev/zram0\"\n"
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(zram-device-configuration->udev-string %zram-swap-device-test-3))
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(test-end "linux-services")
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