![]() Reducing the rendering speed of these plugins can help to reduce the amount of RAM your server is using. Dynmap and Pl3xMap can have very large memory footprints, especially when they are rendering large sections of your world. It is also worth noting that some plugins have high memory usage. Reducing the number of loaded chunks, in almost all cases, will result in decreased memory usage. Smaller servers can get away with higher values, and we recommend setting these values to around 10 or so. This value provides a nice balance between view distance and performance for most servers with higher player counts. For servers with large player counts, we recommend a maximum value of 7 chunks for no-tick-view-distance and view-distance settings. If you are using this setting for your server, then you will need to reduce this setting instead of the view-distance setting. ![]() Paper's no-tick-view-distance setting (located in paper.yml file) also will cause chunks to load in the same manner. This setting will reduce the number of chunks that are loaded by your server, which will in turn reduce the amount of RAM your server is using. The easiest way to change this is by changing the view-distance property in your server.properties file. The most common cause for memory issues in Minecraft servers is too many chunks being loaded at one time. This guide will explain how you can reduce your server's memory usage to avoid these problems. Is your Minecraft server using too much RAM? Are you running out of memory with an "OutOfMemoryError" exception? Perhaps you're seeing large garbage collection lag spikes due to your server running dangerously low on memory. The JVM arguments options should be found in your Minecraft launcher.How To Reduce Memory Usage For Your Minecraft Server This enables concurrent explicit gc so that your game will not freeze during memory cleanings. XX:+AggressiveOpts -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSConcurrentMTEnabled -XX:ParallelGCThreads=4 .gcInterval=1800000 -XX:+UnlockExperimentalVMOptions -XX:+ExplicitGCInvokesConcurrent -XX:MaxGCPauseMillis=50 -XX:+AlwaysPreTouch -XX:+UseStringDeduplication -Dfml.ignorePatchDiscrepancies=true -Dfml.ignoreInvalidMinecraftCertificates=true -XX:-OmitStackTraceInFastThrow -XX:+OptimizeStringConcat -XX:+UseAdaptiveGCBoundary -XX:NewRatio=3 -Dfml.readTimeout=90 -XX:+UseFastAccessorMethods If you don't want your game to freeze when cleaning memory, you should try these JVM arguments: (-Xmx and -Xms values are omitted) Note that do NOT include -XX:+DisableExplicitGC in your JVM arguments because the mod will not function at all with it. More options can be seen in the in-game mod settings. The memory cleaning process also starts when your RAM usage goes above a certain percent (configurable) or after a long period if none of the above conditions are met (also configurable).Īlso you can use the /cleanmemory command to free up your RAM immediately. Due to the fact that explicit gc can freeze your game for a short period, the mod watches the player movement and starts to clean up your RAM after the player stays idle for a while. This mod automatically calls System.gc() to free up your memory. Otherwise this mod will negatively affect your game experience, because explicit gc takes time and it brings no benefit if your RAM is abundant.įor best experience I recommend using the suggested JVM arguments, see below. Only use this if you are experiencing lag caused by high RAM usage (Which usually happens on very large modpacks) or experiencing crashes caused by OutOfMemoryError.
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