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Increase nofile and memlock limits

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Part of https://invent.kde.org/kde-linux/kde-linux/-/issues/282

Increasing nofile limits is required for certain games to work, e.g.
Stronghold 2, and increasing memlock limits is required for certain
real-time workloads, e.g. the use of DAWs.
This commit is contained in:
Thomas Duckworth
2025-09-25 11:46:48 +10:00
committed by Nate Graham
parent 73b69ed96d
commit cd534ddea2
3 changed files with 32 additions and 0 deletions
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7
mkosi.extra/usr/lib/systemd/system.conf.d/00-kde-linux-default.conf
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@@ -1,7 +1,14 @@
# SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
# SPDX-FileCopyrightText: 2023 Harald Sitter <sitter@kde.org>
# SPDX-FileCopyrightText: 2025 Thomas Duckworth <tduck@filotimoproject.org>
[Manager]
TimeoutStartSec=8s
DefaultTimeoutStartSec=16s
DefaultTimeoutStopSec=8s
# Increase the maximum locked memory limit to allow apps which may require this
# to lock more memory, such as digital audio workstations.
DefaultLimitMEMLOCK=infinity
# Increase the number of file descriptors available to user processes
# to allow apps which may require this to open more files simultaneously.
DefaultLimitNOFILE=4096:524288

7
mkosi.extra/usr/lib/systemd/user.conf.d/00-kde-linux-default.conf
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@@ -1,7 +1,14 @@
# SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
# SPDX-FileCopyrightText: 2025 Hadi Chokr <hadichokr@icloud.com>
# SPDX-FileCopyrightText: 2025 Thomas Duckworth <tduck@filotimoproject.org>
[Manager]
TimeoutStartSec=8s
DefaultTimeoutStartSec=16s
DefaultTimeoutStopSec=8s
# Increase the maximum locked memory limit to allow apps which may require this
# to lock more memory, such as digital audio workstations.
DefaultLimitMEMLOCK=infinity
# Increase the number of file descriptors available to user processes
# to allow apps which may require this to open more files simultaneously.
DefaultLimitNOFILE=4096:524288

18
mkosi.extra/usr/share/factory/etc/security/limits.d/00-kde-linux-default.conf Normal file
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@@ -0,0 +1,18 @@
# SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
# SPDX-FileCopyrightText: 2025 Thomas Duckworth <tduck@filotimoproject.org>
# This sets the open file limit and memory lock limit for the users logged in via PAM,
# more specifically, users logged in on via SSH or tty (console).
# Limits related to terminals in graphical sessions depend on a
# change in /usr/lib/systemd/user.conf.d or system.conf.d config files.
# This does not affect the open file limit or memory lock limit of system services.
# Increase the number of file descriptors available to user processes
# to allow apps which may require this to open more files simultaneously.
* soft nofile 4096
* hard nofile 524288
# Increase the maximum locked memory limit to allow apps which may require this
# to lock more memory, such as digital audio workstations.
* soft memlock 2147484
* hard memlock 2147484