Hibernate MC (Formerly Hibernate Fabric)
Lets your Minecraft Fabric or NeoForge server snooze when idle, slashing CPU usage without missing a block!
Hibernate MC
Lets your Minecraft Fabric or NeoForge server snooze when idle, slashing CPU usage without missing a block!
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📖 About
Hibernate MC is a lightweight tool that automatically puts your Minecraft Fabric or NeoForge server to sleep when no players are online. By reducing CPU usage during idle times, it helps save server resources, lowers your electricity bill, and makes your server more eco-friendly. It's a simple way to keep your Minecraft world running smoothly without wasting power when it's not needed.
Hibernate MC can also be used in singleplayer. When used in singleplayer, you can use the /hibernate commands (Ops only) and the entity removal feature works if enableMemoryOptimization is enabled in the config. No other features work in singleplayer as they only function when no players are online which can't happen in singleplayer.
📦 Dependencies
For Fabric:
For NeoForge:
N/A
🎮 Install & Play
Installing Hibernate MC is easy:
- Download the latest version for your loader and Minecraft version here.
- Put the downloaded jar file in to your
modsfolder. - Launch Minecraft and play with the mod.
If installing on a server, don't forget to set pause-when-empty-seconds to 0 in your server.properties file to disable the vanilla hibernation system.
📜 Support Policy
The project supports the Minecraft version for which the mod is initially developed for, along with the next two major Minecraft versions. Versions released prior to the initial supported version are not supported.
Once a Minecraft version falls outside the three-version active support window, it enters Bug-Fixes-Only support for the duration of the following major version. During this period, only critical or game-breaking issues directly related to the project will be addressed. New features, enhancements, and non-critical changes will not be backported to versions in this stage.
Once a version leaves Bug-Fixes-Only support, it becomes Unsupported. Unsupported versions will receive no further updates, fixes, or compatibility changes.
| Minecraft version | Supported status |
|---|---|
26.3 | Supported |
26.2 | Supported |
26.1 | Supported |
1.21.11 | Bugs Only |
1.21.9 | Unsupported |
📝 Config
The config file can be found at /config/hibernate_mc.json from the root of the .minecraft folder or your server folder.
⚙️ Options
See options
Basic Settings
| Setting | Default | Description |
|---|---|---|
startEnabled | true | Whether hibernation activates automatically when server starts with no players |
ticksToSkip | 400 | Number of ticks to process before applying sleep during hibernation |
permissionLevel | 2 | Required permission level to use hibernation commands (0=all, 4=owner) |
sleepTimeMs | 75 | Milliseconds to sleep between tick processing cycles |
Memory Optimization
| Setting | Default | Description |
|---|---|---|
enableMemoryOptimization | true | Enable memory cleanup during hibernation |
memoryCleanupIntervalSeconds | 30 | How often to run memory cleanup routines |
memoryThresholdPercent | 80.0 | Memory usage percentage that triggers cleanup |
forceGarbageCollection | true | Force Java garbage collection during hibernation |
gcIntervalSeconds | 30 | Minimum time between garbage collection runs |
saveBeforeHibernation | true | Save world data before entering hibernation |
removeEntities | item, firework_rocket, arrow, experience_orb | List of entities to remove during hibernation (ignores entities with custom names) |
droppedItemMaxAgeSeconds | 300 | Age in seconds after which items are removed (5 minutes) |
logMemoryInfo | false | Log memory usage and garbage collector information to console |
CPU Optimization
| Setting | Default | Description |
|---|---|---|
aggressiveCpuSaving | true | Enable more aggressive CPU saving measures |
minSleepInterval | 1500 | Minimum time in milliseconds between sleep cycles |
highLoadSleepMultiplier | 1.5 | Multiplier for sleep time when system load is high |
yieldInterval | 8 | How often to yield CPU to other threads (every N ticks) |
Gamerule Values When The Servers Awake
| Setting | Default | Description |
|---|---|---|
advance_time | true | The value to set the gamerule advance_time to when coming out of hibernation |
advance_weather | true | The value to set the gamerule advance_weather to when coming out of hibernation |
random_tick_speed | 3 | The value to set the gamerule random_tick_speed to when coming out of hibernation |
spawn_mobs | true | The value to set the gamerule spawn_mobs to when coming out of hibernation |
fire_spread_radius_around_player | 128 | The value to set the gamerule fire_spread_radius_around_player to when coming out of hibernation |
Gamerule Values When The Servers Hibernating
| Setting | Default | Description |
|---|---|---|
advance_time | false | The value to set the gamerule advance_time to when going into hibernation |
advance_weather | false | The value to set the gamerule advance_weather to when going into hibernation |
random_tick_speed | 0 | The value to set the gamerule random_tick_speed to when going into hibernation |
spawn_mobs | false | The value to set the gamerule spawn_mobs to when going into hibernation |
fire_spread_radius_around_player | 0 | The value to set the gamerule fire_spread_radius_around_player to when going into hibernation |
👨💻 Developing
Are you a developer and want to develop for this mod?
Click to get started.
To get a local copy up and running, follow these simple steps.
🧰 Prerequisites
Ensure you have the following installed on your machine:
- Java Development Kit (JDK): Version 25 or higher.
- Download JDK
- Gradle: Version 9.7.1 or higher.
- Install Gradle
- Minecraft: Version 26.3
🛠️ Build
- Clone the repository
git clone https://codeberg.org/VoxelBill/hibernate-mc.git
- Navigate to the project directory
cd hibernate-mc
- Build the project with Gradle
./gradlew clean build
You can find the built mod at hibernate-mc/<loader>/build/libs/hibernate_mc-<loader>-x.x.x+mc2x.x.jar.
⚖️ License
Distributed under the GNU Lesser General Public License v3.0 only (LGPL-3.0-only).
This project is a fork of Hibernateforge which was distributed under the European Union Public License v1.2 (EUPL-1.2). Relicensing has been done in accordance with the compatibility clause of the EUPL (Article 5).
See LICENSE for more information.
Как поиграть с друзьями с модом Hibernate MC (Formerly Hibernate Fabric)?
Мод Hibernate MC (Formerly Hibernate Fabric) куда интереснее в компании: поднимите сервер Майнкрафт с уже установленным модом, позовите друзей и играйте по своим правилам. Хостинг Майнкрафт для мода Hibernate MC (Formerly Hibernate Fabric) будет готов за пару минут - BungeeHost сделает всё за вас.