Allows the user to relate GC activity to game server hangs, and easily see how long they are taking & how much memory is being free'd.GC Monitoring - monitor garbage collection activity on the server This snapshot can then be inspected using conventional analysis tools.Dumps (& optionally compresses) a full snapshot of JVM's heap.Heap Dump - take a full (HPROF) snapshot of the servers memory Not intended to be a full replacement of proper memory analysis tools.A simple view of the JVM's heap, see memory usage and instance counts for each class.Heap Summary - take & analyse a basic snapshot of the servers memory Spark includes a number of tools which are useful for diagnosing memory issues with a server. The call graph is then displayed in an online viewer for further analysis by the user. It works by sampling statistical data about the servers activity, and constructing a call graph based on this data. The viewer can also apply deobfuscation mappings. Highly readable - simple tree structure lends itself to easy analysis and interpretation.Customisable - can be tuned to target specific threads, sample at a specific interval, record only "laggy" periods, etc.Quick to produce results - running for just ~30 seconds is enough to produce useful insights into problematic areas for performance.Easy to use - no configuration or setup necessary, just install the plugin/mod.Lightweight - can be ran in production with minimal impact.Spark's profiler can be used to diagnose performance issues: "lag", low tick rate, high CPU usage, etc. Spark is made up of a number of components, each detailed separately below. There is a special 25% off discount available for spark users - click the link above to create your server today. Spark is proudly sponsored by BisectHosting.īisectHosting are Minecraft server hosting experts, ready to help you create and host your very own server! They are a trusted and well-established hosting provider in the community, and provide an outstanding level of service that we are happy to recommend. Downloads - latest plugin/mod downloads.Documentation - read documentation and usage guides.(The version here on CurseForge is for Forge/Fabric only!) Useful Links Spark is a performance profiler for Minecraft clients, servers and proxies.
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