Here you can find testing results of G1, Parallel, ConcMarkSweep, Serial and Shenandoah garbage collectors in terms of scaling and resource consumption, as well as some suggestions on what settings can be applied to improve results. First of all the performance of zgc - it is damn fast - gc collection takes sub-millisecond range. 8. 19s Sys=0. Aikar's recommended flags for Waterfall are as follows: java -Xms512M -Xmx512M -XX:+UseG1GC -XX:G1HeapRegionSize=4M -XX:+UnlockExperimentalVMOptions -XX. com is the number one paste tool since 2002. In terminal navigate to /opt/solr. -XX:+ExplicitGCInvokesConcurrent # Avoid explicit System. To work around this issue, disable parallel redo by enabling Trace Flag 3459. -Xms16G -Xmx16G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch . 4 set to 14336mb of ram. 1 heap settings: -Xms1g and -Xmx1g. URL 복사 이웃추가. Java 11 may have ok backwards compatibility, but Forge. (true/false)hey everyone, I am very new to using linux and am trying to make a start script but i need it to on crash restart in the same screen for example if HUB1 crashes it will continue in the screen called HUB1 and continue like nothing happened. tickChildren is your first issue. md","path":"pages/minecraft-java/managing-server. - AdoptOpenJDK 11 HotSpot. The key problem seems to be around the task queue implementation rather than the actual. By including the -XX:+ParallelRefProcEnabled. Instance has got 1000+ projects openjdk version “1. docker run -e JVM_XX_OPTS=-XX:+UseG1GC -XX:+ParallelRefProcEnabled ^ | Without quotes, the shell thinks this is the start of a new argument This ambiguity is one of many reasons I prefer the object style declaration of environment in compose files: In between the CMS and GC Logging sections, there should be one more section in that file- the G1 section, which looks like this: ### G1 Settings (experimental, comment previous section and uncomment section below to enable) ## Use the Hotspot garbage-first collector. This mod reduces the memory usage of Minecraft in a few different ways. 참고로 마인크래프트가 기존 PC용 자바 에디션과, 콘솔/모바일 크로스 플랫폼 을 지원하는. 6:18. java. It seems to be much worse with multiple core system. p. runSetupWizard=false # 1. ENV PATH=/usr/local/openjdk-16/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/binWhen disabling network-compression-threshold (-1) the lag is increased by a lot (around 10 seconds of lag) In the task manager, the bandwidth goes to 54 mbps up and some cores/threads of the CPU goes to 95% with network-compression-threshold disabled. io, download the server jar you want, make a new text document on your desktop and edit it. -XX:-UseAdaptiveSizePolicy and -XX:+ParallelRefProcEnabled are parallels to is a variant to -XX:G1NewSizePercent=20 and -XX:G1ReservePercent=20. Why would you want to change the default G1 to Z, when it works just fine, especially with a bit of tuning. xml file (same folder as jenkins. At the time of writing: jdk-11. You're going to want to do this with both the local IP and your external ip/domain name. Syntax: java -XX:+ParallelRefProcEnabled MainClass . Pause times are independent of heap size that is being used. Turning on ParallelRefProcEnabled helps collect reference objects (e. The resulting logs can then be analysed in a specialized tool such as the GCMV plugin for. Using Aikar Flags is relatively simple and only requires a few adjustments depending on what brand of server is in use and how much memory (RAM) is allocated to the server instance. 0 of the 1. The external port is external. Reload to refresh your session. 0. jar. create a new text document and call it. -XX:+ParallelRefProcEnabled # parallelize reference processing, reducing young and old GC times. YCSB was used to drive 600 work threads sending requests to the HBase server. Unzip this on your build server, keep the path where you extracted to for step 5. With over 800 million mods downloaded every month and over 11 million active monthly. forgot to add that your main problems are pretty much with any mobs ticktime. -XX:+CMSScavengeBeforeRemark (default false)An extra optimization to Aikar flags, the JVM arguments that make your Minecraft server smooth. In some cases, the descriptions provide links to additional detailed information about an issue or a change. Q&A for work. > > > > I've included some notes on the wiki about how you can size the G1 heap > > regions appropriately for your own index. Memory allocated to solr-8. e. Its default is calculated based on your current machine, you can see it via java -XX:+Use????GC -XX:+PrintFlagsFinal | grep ParallelGCThreads (fill in the GC you're using, defaults may vary) -XX:+ParallelRefProcEnabled -XX:ReferencesPerThread=1000 -XX:ReferencesPerThread determines the degree of parallelization: for every N Reference Objects one thread will participate in the sub-phases of Reference Processing, limited by -XX:ParallelGCThreads . Newer Than: Search this thread only; Search this forum only. 16. Edit: Solved, just set them both to the same value! So when running my server (which has 8GB or RAM) I set my Xms to 2G (minimum RAM) and Xmx to 6GB (maximum RAM). After lagging from 20 to all players get kicked "due to keepalive timeout" or "Timed out". In terms of reducing lag spikes I got very good results using the Shenandoah GC. To display the JVM status for a JBoss EAP server in a managed domain: Select the Runtime tab, and then select the server group and server that you want to view. . Recommend just letting ZGC manage this and removing the flag. jar. 9. MrNeeonx said: ↑. I believe problem is related to inappropriate JVM params. Java 17 is noticeably faster than Java 11 in my small-scale experiments. G1RSetUpdatingPauseTimePercent=5: Default is 10% of time spent during pause updating Rsets, reduce this to 5% to make more of it concurrent to reduce pause durations. formatMsgNoLookups=true -XX:+UseG1GC -XX:+ParallelRefProcEnabledDownload the latest Java 11 Compressed Archive (zip) file. Pastebin. 16. 75G = 1792m # 1. exe process under the tree of the Minecraft launcher) Minecraft javaw. Paper recommends this startup argument for anything over 12gb of ram java -Xms14G -Xmx14G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 . To display the JVM status for a JBoss EAP server in a managed domain: Select the Runtime tab, and then select the server group and server that you want to view. モジュール化やProject PortlaによりGCを限定したビルドが作成可能. # Keyspaceの作成 (keyspace_nameは. set "HEAP=-Xms5g . 9. If you don't have any sort of caching which might consume that much it might be a memory leak. A common set of GC flags is Aikars flags, but they have their limits since as good as they may be, the GC still has. . Share. Use the below command line options to get better performance in Minecraft garbage collection. 4 Direwolf20 pack it reduces the memory usage (after GC) on. jmeter -n -t test. txt and change "false" to "true", then create a . So given Wendell’s recent video+thread on HaProxy-Wi and other content relating to self-hosting services at home and then proxy-ing them to the internet, I have seen some questions about running a reverse proxy with a Minecraft server, and answered them, and thought I might as well make a full thread. 8. 5GHZ) 32GB DDR4 Ram 2x 128GB SSD in Raid1 1GBiT Uplink Before i move the Gameservers to new System i want to optimize the Server as good as i can!Last week a major vulnerability in the Log4J2 library was widely reported in the tech community. Delete USERGUI Folder: - Exit TOS and Right Click> Open File Location > Select the USERGUI folder with the LEFT mouse button and press Shift. The latest builds target 1. Db2 must be running on a central processor complex that contains two or more tightly coupled processors (sometimes called central processors, or CPs). 先说结论，至少Java11的测试版ZGC在普通生电服务器是完全不如ParallelOldGC的，1. Newer Than: Search this thread only; Search this forum only. 但是被提醒，发现即使在分配4核的容器上，GC线程数也为38。. We would like to show you a description here but the site won’t allow us. The MultiMaxScoreQParserPlugin is part of solr-hybris-components-<version_of_solr>. > > A note was just recently added to the Lucene wiki,. 5/24/2018: Added -XX:+ParallelRefProcEnabled. Use of -XX:+ParallelRefProcEnabled flag decreased the pause time of PhantomReference to 0. 7) and 40 gb ssd. 55=-XX:G1HeapRegionSize=32 wrapper. Java 17 is mainly for 1. 8kb] Object creation & promotion rate: 132. To further tune your memory usage. 3) 맵 크기에 맞춰서 시간을 기다려 줍니다. * Running java version, paths. 0. open file limit is 4096. 0-amazon-correto. Please also check the Release Notes. Example: 1. Fork 31. 1. Author: Bobby Recently, my colleague talked about the ParallelGCThreads parameter of Java. This tells the JVM to delay the max garbage collection time of 200 milliseconds. Option #2: Since I see the Full GC (System) logs, I thought of adding -XX:+DisableExplicitGC. 4. モジュール化やProject PortlaによりGCを限定したビルドが作成可能に. Aikar flags seen here Aikar's Flags | PaperMC Documentation. exe is your java 8 binary. . 56=-XX:InitiatingHeapOccupancyPercent=70 Nat. In short, try the -XX:+ParallelRefProcEnabled switch. branch. For an application that uses Reference objects extensively, the GC work to process the Reference objects can be noticeable. Glad this game has such a good dev that responds to people. The option “-XX:+ParallelRefProcEnabled” enable parallel reference processing whenever possible. When a player joins, its a new entity that is being spawned into the world, which uses processing power and ram. In the Monitor column, select JVM and click View . 16. latest 선택. additional. Open your terminal, navigate to the saved location, and then run. 19. java. Since the introduction of this feature in G1 in JDK 11 we have not heard complaints, so this seems appropriate. It was clear that G1GC is not the way to go with OpenJDK 1. I would check to make sure you have the mods in the right folder and are launching the game with the correct version of forge. #Enable the following parameters for JVM G1 garbage collector in enterprise environments wrapper. Intro. Display results as threadsHey, @koromkorom - could you provide the yaml for your Jenkins instance? The two yaml files you mentioned will install the CRD and the operator, and that works. Then right-click and edit the shortcut so that: Target: "C:Program Filesuluzulu-15injavaw. To enable Garbage Collection logs, the below properties should be defined: 1 -Xloggc:<node temporary directory>/gc_node_%t. GC pauses of up to 200 milliseconds are usually considered acceptable because the server is able to immediately catch up following the pause, so there is no noticeable impact on gameplay. Since we pretty much always want all the parallel stuff offered by the JVM, go. 5. I very highly recommend you check out Aikar's website, there are many more optimizations you can make with JVM Arguments. # other options <application-jar> \ [application-arguments] In your case you. For example, in java 14 the full. Edit: I tried including this Java argument and it seems to be helping a lot. · Issue #1 · LiamSho/mcsmanager-image · GitHub. From what I understand this means the server will always use 2GB of RAM but can take up to 6GB if it needs it. Follow the instructions in the image below. x for a while now without issues. Then run chmod +x start. com is the number one paste tool since 2002. -XX:+ParallelRefProcEnabled (default true) If remark pauses are high or increasing (i. You need to change your running arguments to the ones supplied on their discord. 0-58-generic x86_64) 使用文档中提供的docker run命令运行。 已经安装环境镜像JDK17，并在进程启动方式中配置好虚拟化容器启动。 #Enable the following parameters for JVM G1 garbage collector in enterprise environments wrapper. Parallel reference processing is available for the low pause collector but is not on by default. . However, this tuning case led us to believe that for HBase heaps without a clear choice of region size, in our case 40+ GB, it’s much better to err on the side of fewer, larger regions. Step 6 - Configure Spigot as a service. 序言：一个原本活蹦乱跳的男人离奇死亡，死状恐怖，灵堂内的尸体忽然破棺而出，到底是诈尸还是另有隐情，我是刑警宁泽，带. 2. Today i got out of memory title, but i had enough free ram (about 800mb). I did an ls on the java and it says java-1. Backup Jenkins Home, especially your jenkins. . Note that SAP Commerce also supports multiple Solr. +ParallelRefProcEnabled - Optimizes the GC process to use multiple threads for weak reference checking. * Loaded classes. ) # agree EULA of minecraft without editing eula. lang. 让 JVM 动态感知 cgroup. 00s Real=0. When I reboot the server (linux) and start the mainserver, about 15% of RAM will be used. Best values for min-max RAM, Xms & Xmx arguments. jar. Default. exe -Xms2048m -Xmx4096m -jar spigot-1. 0, I would recommend Java 11. 使用llireta创造服全物品中心进行静态测试，带出生点一共近万漏斗数百实体比较. JDK; JDK-6662086; 6u4+, 7b11+: CMS never clears referents when -XX:+ParallelRefProcEnabledI was curious about this topic, because when searching about this topic I wanted to check that JVM was better to run a minecraft server but I didn't find any, so I made some tests with the following JDK: - AdoptOpenJDK 8 OpenJ9. Describe the issue A clear and concise description of the issue. Go to papermc. 如果没有设置堆内存的大小，默认情况下，JVM 的 Max Heap Size 是操作系统的 1/4，我们知道 Docker 是通过 CGroups 来实现内存的限制，而 /proc 目录只是以只读的形式挂载到容器中，默认情况下 Java 是看不到 CGroups 限制的内存大小，而是通过 /proc. Since you're using the nashorn engine which dynamically generates bytecode it might also be an issue with class unloading or lack thereof, but that is not evident from your logs. I very highly recommend you check out Aikar's website, there are many more optimizations you can make with JVM Arguments. After out of memory issue i got this in the. I think this means that your server is out of RAM. Tuning G1 GC for Cassandra. Setting this value to 0 will tell the G1 garbage collector to always use the number of threads specified by the -XX:ParallelGCThreads flag value. The JVM itself has a memory overhead, so in my experience you want your Xmx value to be 512mb-1gb less than the total memory allocated for the server. On Paper, the stress test ran for about 5 hours with no problems, just delayed ticks ~100. This best practice advice applies to AM, DS, IDM and IG running on Java® 11 (or 17 where supported). We can also include following other options : -XX:+UnlockDiagnosticVMOptions. ago. Step 5 - Start Spigot Server. Introduction. Thanks a bunch! I'll try that out today. Learn more about Teams If you are looking for the Fabric version you can find it here. 参数:ParallelRefProcEnabled 用法: -XX:+ParallelRefProcEnabled. Setting initial and minimum heap size. ) 2) 적절한 거리의 월드 보더를 잡아주고 플러그인 명령어를 통해 청크를 (맵을) 미리 생성해줍니다. Some app uses weak references (say for caching, and it does not mind if JVM gabbage collects these cache lines to “effectively” increase the cache size), then GC spends a lot of time trying to figure which references can be cleaned up. -XX:+CMSScavengeBeforeRemark (default false)Bobcat00. Guess I'm just not sure what version of forge to use?Two of the > > settings on that list were critical for making the performance > > acceptable with my testing: ParallelRefProcEnabled and G1HeapRegionSize. A high-performance fork of Paper designed for large servers. This is the log output from gc logs. For each N references defined by the -XX:ReferencesPerThread flag a single thread will be used. Open your terminal, navigate to the saved location, and then run. This is the first article of the Java in Container series. These pause time is not acceptable to our. Enables the function for parallel execution, making it safe for use in concurrent sessions of parallel DML evaluations. You can change the Xms and Xmx to be 3G. If you have something good, please let me know. JNDI exploit string. Yeah, get a different host or something. Then executing the plain java command will execute with the Java 15 binary. Click to expand. 2 then. For 1. 1 ParallelGCThreads controls the parallelism of all stop-the-world GC phases, which should include parallel reference processing. There is zero tolerance for incivility toward others or for cheaters. The pack runs fine with 10GB RAM. Starting at "Adrenalin 22. Paper has many unique features and changes, including many performance improvements not found in Spigot. Teams. Pastebin. 8 java_flags=-Dlog4j2. You can still use the current builds on 1. Server-side workloads like chunk generation can get a 20%+ boost while using it! These are some GraalVM flags I put together with the help of this and this. We also see the JNDI exploit strings in the path parameters. ZGC stands for Z Garbage Collector, a garbage collector, put simply, is a thing that frees up memory for further use within your server. sh file inside bin folder and hit the below command. 沈念sama 阅读 22,161 评论 2 赞 153. 0. The subreddit for all things related to Modded Minecraft for Minecraft Java Edition --- This subreddit was originally created for discussion around the FTB launcher and its modpacks but has since grown to encompass all aspects of modding the Java edition of Minecraft. jar". 0. ZGC supports heap sizes from 8MB to 16TB. Oct 11, 2016 at 8:41. 19. Unzip this on your build server, keep the path where you extracted to for step 5. You switched accounts on another tab or window. The issue was first to believed to be caused by G1GC itself or the used Runtime GraalVM 21. Display results as threadsG1GC remark phase is taking too long. I sticked solely to the G1GC and the settings provided by Nemerensis and iterated from there. 8. Search titles only; Posted by Member: Separate names with a comma. 최적화 버킷의 기준은 Paper 및 Paper 기반 포크입니다. Indeed it seems from these results that it produces some of the worst results with ZGC. Status. This gets all pages into the memory before entering the main() method. 16. For example, a product our members 环境：Ubuntu 22. 3gb], new bytes reserved: [2896/2. additional. AlwaysPreTouch. Atm 8 Jvm arguments. jar. - Setup> Application Settings> System> Active Trader – AT Rate: 0, Price Ladder: 3. 并行处理 Reference对象，ParallelRefProcEnabled默认值false，若 GC log 里出现 Reference 处理时间较长的日志，可以开启此参数-XX:+ParalleRefProcEnabled。开启后会使用jvm可用的线程数进行处理，但官网上提到的-XX:ReferencesPerThread参数在jdk17的版本中没有找到，猜测可能是jvm内部. Symptoms: High p99 read/write latencies (because of long GC pauses) High CPU causing lower read throughput (because of low GC throughput) Dropped mutations (because of full GC collections on write-heavy clusters) By including the -XX:+ParallelRefProcEnabled flag and changing the -XX:ReferencesPerThread flag value. 120 online, spark:. In FileZilla, go to your directory to where your Minecraft servers are located. 正文 年R本政府宣布，位于F岛的核电站，受9级特大地震影响，放射. Invicta. JDK; JDK-6665210; Crash in first CMS when -XX:-UseParNewGC -XX:+ParallelRefProcEnabled specifiedxtrememegaman. Tuning G1 GC for Cassandra is too complicated, but it can make a big difference in cluster health. You'll have to create a server first to be able to use it - don't worry, the scripts below will do the majority of the work for you. 17. Once the WebUI has refreshed, go to your RL Craft server. Inside, write @Echo off java -Xms128M -Xmx5120M -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch . I just did that, and the . It seems to be much worse with multiple core system. System Info Handler. Tuning young-generation GC further based on Instance C: Back to GCViewer we go, to see what's time consuming with the GC for Instance C. 1 ParallelGCThreads controls the parallelism of all stop-the-world GC phases, which should include parallel reference processing. I have followed the tutorial for Ubuntu 20. 0 is 32GB. Angel Borroy is Hyland Developer Evangelist. We can also include following other options : -XX:+UnlockDiagnosticVMOptions. JvmInspector is standalone tool + Nagios wrapper plugin (check_jvm) that dumps various properties from locally running JVMs. Prerequisites. The CMD column present in both of these outputs will help in the decision. What behaviour is expected: Server to shut down and start its self again. Raw. Teams. * Running threads. This makes sense since requests take 30-40ms and most of the objects lifetime is tied to the request lifetime. Create a new installation, call it whatever you want. Run your JMeter script in command-line non-GUI mode like. Turn it on with the flag -XX:+ParallelRefProcEnabled if you make extensive use of Reference Objects (most applications don't). 选项 -XX:ParallelRefProcEnabled 现在默认为 true（启用） 在有多个线程可用于垃圾收集的机器上，这一变化显着改善了垃圾收集暂停的这一阶段。 如果您遇到垃圾收集暂停增加的情况，您可以通过在命令行上指定 -XX:-ParallelRefProcEnabled 来恢复到原始行为。Hey all, I recently onboarded a client with probably 100+ mods on their Forge 1. 7) and 40 gb ssd. These pause time is not acceptable to our requirements. :/. ConclusionYou signed in with another tab or window. Docker (도커. This optimizes the garbage collector so it can use multiple threads for weak reference checking. An example for such output is User=0. You need to use the correct binaries. 01s . 0-amazon. minecraft) Click more options. The option can be used in testing to simulate a long-running system with all virtual memory mapped to physical memory. Since the introduction of this feature in G1 in JDK 11 we have not heard. . Newer Than: Search this thread only; Search this forum only. 0injava -XX:+PrintFlagsFinal GarbageCollection [Global flags]. You could try adding something like -XX:ParallelGCThreads=3 to see if it helps. Q&A for work. It contains over 800 mods, from dimensions and biomes to entities, blocks, items and more, making the game much more difficult than before. ZGC supports heap sizes from 8MB to 16TB. GraalVM is a new Java VM from Oracle that can improve the performance of modded and vanilla Minecraft. Those are troubling; we'll take a deeper dive into their causes in a second. 2. Create an account or sign in to comment. Connect and share knowledge within a single location that is structured and easy to search. What I've end up with was that: -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX. These pause time is not acceptable to our. 1. All I can do with the warning message is make an educated guess that possibly it's throwing it because -XX:ParallelRefProcEnabled is specified. garbage-collection. Officially recorded as CVE-2021-44228 it is a severe vulnerability that could allow remote code execution in a server running Log4J2. 8 seconds. If you still need more, ram to run your minecraft server, you could try -Xmx5120M -Xms5120M which will allocate 5gb. The start memory. Step 3 - Create a Minecraft user. 2. Embed. The G1GC old generation committed heap goes up over time (about 5 to 6 days on production) but the old generation used heap does not. However, this tuning case led us to believe that for HBase heaps without a clear choice of region size, in our case 40+ GB, it’s much better to err on the side of fewer, larger regions. Inside, write @Echo off java -Xms128M -Xmx5120M -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch . 1) 위의 링크로 들어가 Chunky 를 다운받고 넣어준다 (무료입니다. 21. Instance is a bit of legacy running gui [Jenkins 2. I would think that this is the max you'll get away with being able to allocate on an 8gb system. 2 for now, but future dev builds may break on 1. #3 kults, Oct 24, 2022. -XX:+ParallelRefProcEnabled：默认为 false，并行的处理 Reference 对象，如 WeakReference，除非在 GC log 里出现 Reference 处理时间较长的日志，否则效果不会很明显。-XX:+ScavengeBeforeFullGC：在 Full GC 执行前先执行一次 Young GC。-XX:+UseGCOverheadLimit：限制 GC 的运行时间。According to G1GC documentation, the ideal region count is 2048, so 16 MB regions were perfect for a 32 GB heap. My server application under load some times goes unresponsive and i found the issue to be related to very long "GC Remark". In fact you don't (and probably shouldn't) even need to declare a port mapping for that container. Added more flag documentation. Indeed it seems from these results that it produces some of the worst results with ZGC. Symptoms: High p99 read/write latencies (because of long GC pauses) High CPU causing lower read throughput (because of low GC throughput) Dropped mutations (because of full GC collections on. Paper is a high-performance fork of Spigot. The resulting logs can then be analysed in a specialized tool such as the GCMV plugin for Eclipse. Click on the version menu and find quilt (You could optionally edit the quilt one) Set the directory for the game (Leave it if you just want to keep it in . 7% but It even uses 170%. Turns out, since most Minecraft mods are made by hobbyists and not experienced coders, there are some bad programming habits that are common to them, and one of those appears to be calling explicit garbage collection, way too frequently, eating massive amounts of CPU time. The key problem seems to be around the task queue implementation rather than the actual work itself. Most of the objects are created during protobuf deserialization time. the only difference being populating the core key in the result. -XX:+ParallelRefProcEnabled. minecraft) Click more options. The overhead of spinning up new PowerShell classes is non-zero. I was provided these settings by vendor to help improve the performance of our jenkins. In some cases, the descriptions provide links to additional detailed information about an issue or a change. 2]. Java recommendation for Solr. G1RSetUpdatingPauseTimePercent=5: Default is 10% of time spent during pause updating Rsets, reduce this to 5% to make more of it concurrent to reduce pause durations. -XX:+ParallelRefProcEnabled (default true) If remark pauses are high or increasing (i. )Well, I eventually ended up finding a solution. By Bubi. Also, you put a wrong back to break line (" ") which seems to break the bash. You might also want to change the default region to your region, check below. I tried different RAM allocations: 4GB, 8GB, 12GB since only 2 Players play on my server 4 GB should've been statistically enough. ref-proc is the major contributor) it parallelizes the reference processing, reducing Young and Tenured GC times. -Xms12G -Xmx12G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions . 2 then. exe is your java 8 binary. Posting on a closed issue saying the crash still exists will prompt us to investigate and reopen it once we confirm your report. -XX:+ParallelRefProcEnabled - ZGC uses a complex approach to cleaning up references. Which, according to hotspot-runtime-dev discussions, will prevent some performance monitoring command line tools from discovering running VMs automagically. 商业产品与合作咨询.