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129 lines
3.9 KiB
129 lines
3.9 KiB
# Copyright 2022 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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MULTILIB_COMPAT=( abi_x86_{32,64} )
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inherit meson-multilib systemd
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DESCRIPTION="Optimise Linux system performance on demand"
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HOMEPAGE="https://github.com/FeralInteractive/gamemode"
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if [[ ${PV} == "9999" ]] ; then
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EGIT_REPO_URI="https://github.com/FeralInteractive/gamemode.git"
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GAMEMODE_GIT_PTR="master"
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inherit git-r3
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else
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GAMEMODE_GIT_PTR="${PV}"
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SRC_URI="https://github.com/FeralInteractive/gamemode/releases/download/${GAMEMODE_GIT_PTR}/${P}.tar.xz"
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KEYWORDS="~amd64 ~x86"
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fi
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LICENSE="BSD"
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SLOT="0"
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IUSE="systemd elogind"
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REQUIRED_USE="^^ ( systemd elogind )"
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RDEPEND="
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acct-group/gamemode
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>=dev-libs/inih-53
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sys-apps/dbus[${MULTILIB_USEDEP},systemd(+)=,elogind(-)=]
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sys-auth/polkit
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sys-libs/libcap
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"
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DEPEND="${RDEPEND}"
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PATCHES=(
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"${FILESDIR}"/${PN}-1.7-static-libs.patch
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)
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DOCS=(
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CHANGELOG.md
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LICENSE.txt
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README.md
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example/gamemode.ini
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)
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pkg_pretend() {
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elog
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elog "GameMode needs a kernel capable of SCHED_ISO to use its soft realtime"
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elog "feature. Example of a kernel providing that is sys-kernel/pf-sources."
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elog
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elog "Support for soft realtime is completely optional. It may provide the"
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elog "following benefits with systems having at least four CPU cores:"
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elog
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elog " * more CPU shares allocated exclusively to the game"
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elog " * reduced input lag and reduced thread latency"
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elog " * more consistent frame times resulting in less microstutters"
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elog
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elog "You probably won't benefit from soft realtime mode and thus don't need"
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elog "SCHED_ISO if:"
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elog
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elog " * Your CPU has less than four cores because the game may experience"
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elog " priority inversion with the graphics driver (thus heuristics"
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elog " automatically disable SCHED_ISO usage then)"
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elog " * Your game uses busy-loops to interface with the graphics driver"
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elog " but you may still force SCHED_ISO per configuation file, YMMV,"
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elog " it depends on the graphics driver implementation, i.e. usage of"
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elog " __GL_THREADED_OPTIMIZATIONS or similar."
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elog " * If your game causes more than 70% CPU usage across all cores,"
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elog " SCHED_ISO automatically turns off and on depending on usage and"
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elog " is processed with higher-than-normal priority then (renice)."
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elog " This auto-switching may result in a lesser game experience."
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elog
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elog "For more info look at:"
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elog "https://github.com/FeralInteractive/gamemode/blob/${GAMEMODE_GIT_PTR}/README.md"
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elog
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}
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multilib_src_configure() {
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local emesonargs=(
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-Dwith-systemd-user-unit-dir="$(systemd_get_userunitdir)"
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-Dwith-pam-limits-dir="${EPREFIX}"/etc/security/limits.d
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)
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if multilib_is_native_abi; then
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emesonargs+=(
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-Dwith-sd-bus-provider=$(usex systemd systemd elogind)
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-Dwith-util=true
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)
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else
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emesonargs+=(
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-Dwith-sd-bus-provider=no-daemon
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-Dwith-pam-renicing=false
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-Dwith-examples=false
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-Dwith-util=false
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)
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fi
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meson_src_configure
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}
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pkg_postinst() {
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elog
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elog "GameMode has optional support for adjusting nice and ioprio of games"
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elog "running with it. You may need to adjust your PAM limits to make use"
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elog "of this. You need to be in the gamemode group for this to work."
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elog
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elog "Run the following command as root to add your user:"
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elog "# gpasswd -a USER gamemode # with USER = your user name"
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elog
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elog "You can run the following command to test your settings:"
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elog
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elog "# gamemoded -t"
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elog
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elog "GameMode supports GPU optimizations. It defaults to OFF. Any"
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elog "damage resulting from usage of this is your own responsibility."
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elog
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elog "systemd user sessions will automatically run the daemon on demand,"
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elog "it does not need to be enabled explicitly. Games not supporting"
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elog "GameMode natively can still make use of it, just add"
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elog
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elog "gamemoderun %command%"
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elog
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elog "to the start options of any steam game to enable optimizations"
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elog "automatically as you start the game."
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elog
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}
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