Gamemode: Difference between revisions
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programs.gamemode.enable = true; | programs.gamemode.enable = true; | ||
</syntaxhighlight> | </syntaxhighlight> | ||
== Running == | == Running == | ||
To run games with | To run games with GameMode start it like this: | ||
<syntaxhighlight> | <syntaxhighlight lang=console> | ||
$ gamemoderun ./game | $ gamemoderun ./game | ||
</syntaxhighlight> | </syntaxhighlight> | ||
When you have started your game you can verify that | When you have started your game you can verify that GameMode is running with the command: | ||
<syntaxhighlight> | <syntaxhighlight lang=console> | ||
$ gamemoded -s | $ gamemoded -s | ||
</syntaxhighlight> | </syntaxhighlight> | ||
=== Steam === | |||
To make sure Steam starts a game with | To make sure Steam starts a game with GameMode, right click the game, select Properties..., then Launch Options and enter: | ||
<syntaxhighlight> | <syntaxhighlight lang=text> | ||
gamemoderun %command% | gamemoderun %command% | ||
</syntaxhighlight> | </syntaxhighlight> | ||
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== Verifying Optimisations == | == Verifying Optimisations == | ||
<code>gamemoded -t</code> can be used to verify that the optimisations for your configuration get applied: | <code>gamemoded -t</code> can be used to verify that the optimisations for your configuration get applied: | ||
<syntaxhighlight> | <syntaxhighlight lang = console> | ||
$ gamemoded -t | |||
: Loading config | : Loading config | ||
Loading config file [/nix/store/p8dbmpdak57psrb5c0mz7crsc95nfzs6-gamemode-1.6.1/share/gamemode/gamemode.ini] | Loading config file [/nix/store/p8dbmpdak57psrb5c0mz7crsc95nfzs6-gamemode-1.6.1/share/gamemode/gamemode.ini] | ||
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Renice & ioprio optimisations sometimes fail. This is caused by GameMode trying to apply optimisations on processes that exit before the optimisations can be applied. See [https://github.com/FeralInteractive/gamemode/issues/167#issuecomment-524277666 FeralInteractive/gamemode#167 (comment)]. | Renice & ioprio optimisations sometimes fail. This is caused by GameMode trying to apply optimisations on processes that exit before the optimisations can be applied. See [https://github.com/FeralInteractive/gamemode/issues/167#issuecomment-524277666 FeralInteractive/gamemode#167 (comment)]. | ||
<syntaxhighlight> | <syntaxhighlight lang=text> | ||
ERROR: Could not inspect tasks for client [329118]! Skipping ioprio optimisation. | ERROR: Could not inspect tasks for client [329118]! Skipping ioprio optimisation. | ||
ERROR: Refused to renice client [31477,31477]: prio was (-10) but we expected (0) | ERROR: Refused to renice client [31477,31477]: prio was (-10) but we expected (0) | ||
| Line 93: | Line 84: | ||
If you don't have an Intel CPU, you will get errors about failing to read the energy levels. This isn't a real problem. It just means that optimizations for integrated graphics cards won't be enabled: | If you don't have an Intel CPU, you will get errors about failing to read the energy levels. This isn't a real problem. It just means that optimizations for integrated graphics cards won't be enabled: | ||
<syntaxhighlight> | <syntaxhighlight lang=text> | ||
ERROR: Failed to open file for read /sys/class/powercap/intel-rapl/intel-rapl:0/intel-rapl:0:0/energy_uj | ERROR: Failed to open file for read /sys/class/powercap/intel-rapl/intel-rapl:0/intel-rapl:0:0/energy_uj | ||
</syntaxhighlight> | </syntaxhighlight> | ||
If you don't have a screensaver installed, you will get the following error: | If you don't have a screensaver installed, you will get the following error: | ||
<syntaxhighlight> | <syntaxhighlight lang=text> | ||
ERROR: Could not call Inhibit on org.freedesktop.ScreenSaver: No route to host | ERROR: Could not call Inhibit on org.freedesktop.ScreenSaver: No route to host | ||
org.freedesktop.DBus.Error.ServiceUnknown | org.freedesktop.DBus.Error.ServiceUnknown | ||
| Line 108: | Line 99: | ||
programs.gamemode.settings.general.inhibit_screensaver = 0; | programs.gamemode.settings.general.inhibit_screensaver = 0; | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Setting the power scheme might result in the following error: | |||
<syntaxhighlight lang=text> | |||
::: Verifying CPU governor setting | |||
ERROR: Governor was not set to performance (was actually schedutil)! | |||
::: Failed! | |||
</syntaxhighlight> | |||
Adding the the user to the gamemode group resolves this error. | |||
<syntaxhighlight lang="nix"> | |||
extraGroups = ["gamemode"]; | |||
</syntaxhighlight> | |||
[[Category:Gaming]] | |||
Latest revision as of 08:09, 3 May 2024
GameMode is a daemon/lib combo for Linux that allows games to request a set of optimisations be temporarily applied to the host OS and/or a game process.
Installation
GameMode depends on root-level capabilities that aren't available in a user-level Nix package installation. The easiest way to set this up is to use the NixOS module:
programs.gamemode.enable = true;
Running
To run games with GameMode start it like this:
$ gamemoderun ./game
When you have started your game you can verify that GameMode is running with the command:
$ gamemoded -s
Steam
To make sure Steam starts a game with GameMode, right click the game, select Properties..., then Launch Options and enter:
gamemoderun %command%
Verifying Optimisations
gamemoded -t can be used to verify that the optimisations for your configuration get applied:
$ gamemoded -t
: Loading config
Loading config file [/nix/store/p8dbmpdak57psrb5c0mz7crsc95nfzs6-gamemode-1.6.1/share/gamemode/gamemode.ini]
Loading config file [/etc/gamemode.ini]
: Running tests
:: Basic client tests
:: Passed
:: Dual client tests
gamemode request succeeded and is active
Quitting by request...
:: Passed
:: Gamemoderun and reaper thread tests
...Waiting for child to quit...
...Waiting for reaper thread (reaper_frequency set to 5 seconds)...
:: Passed
:: Supervisor tests
:: Passed
:: Feature tests
::: Verifying CPU governor setting
::: Passed
::: Verifying Scripts
:::: Running start script [/nix/store/ig8aqj0973jgn6mhnr7smmqb6p7alrz4-libnotify-0.7.9/bin/notify-send 'GameMode started']
:::: Passed
:::: Running end script [/nix/store/ig8aqj0973jgn6mhnr7smmqb6p7alrz4-libnotify-0.7.9/bin/notify-send 'GameMode ended']
:::: Passed
::: Passed
::: Verifying GPU Optimisations
::: Passed
::: Verifying renice
::: Passed
::: Verifying ioprio
::: Passed
:: Passed
: All Tests Passed!
Known Errors
 |
Tip
The logs of the daemon service can be accessed with
journalctl --user -u gamemoded.service. |
Renice & ioprio optimisations sometimes fail. This is caused by GameMode trying to apply optimisations on processes that exit before the optimisations can be applied. See FeralInteractive/gamemode#167 (comment).
ERROR: Could not inspect tasks for client [329118]! Skipping ioprio optimisation.
ERROR: Refused to renice client [31477,31477]: prio was (-10) but we expected (0)
If you don't have an Intel CPU, you will get errors about failing to read the energy levels. This isn't a real problem. It just means that optimizations for integrated graphics cards won't be enabled:
ERROR: Failed to open file for read /sys/class/powercap/intel-rapl/intel-rapl:0/intel-rapl:0:0/energy_uj
If you don't have a screensaver installed, you will get the following error:
ERROR: Could not call Inhibit on org.freedesktop.ScreenSaver: No route to host
org.freedesktop.DBus.Error.ServiceUnknown
The name org.freedesktop.ScreenSaver was not provided by any .service files
You can disable the screensaver inhibiter to get rid of those errors:
programs.gamemode.settings.general.inhibit_screensaver = 0;
Setting the power scheme might result in the following error:
::: Verifying CPU governor setting
ERROR: Governor was not set to performance (was actually schedutil)!
::: Failed!
Adding the the user to the gamemode group resolves this error.
extraGroups = ["gamemode"];