Disk Usage - how much disk space is free/being used by the systemĪs well as providing tick rate averages, spark can also monitor individual ticks - sending a report whenever a single tick's duration exceeds a certain threshold.Memory Usage - how much memory is being used by the process.CPU Usage - how much of the CPU is being used by the server process, and by the overall system.Tick Durations - how long each tick is taking (min, max and average).TPS - ticks per second, to a more accurate degree indicated by the /tps command.Spark can report a number of metrics summarising the servers overall health. Observe frequency/duration of young/old generation garbage collections to inform which GC tuning flags to use.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 Students may even find inspiration in some of the ideas they read, bringing their own insights into class discussions and analytical writing.Spark is a performance profiler for Minecraft clients, servers and proxies. If you're concerned about kids using the app instead of reading an assigned book, keep in mind that sometimes, when kids have a preliminary understanding of a text's plot and characters, they're more easily able to understand the original text, especially in cases where the language and text complexity prove to be challenging. Parents may appreciate using the app as a way to refresh their memories of the works their kids are currently reading (or to get an idea of the work if they've not read it themselves). The SparkNotes library is extensive, with hundreds of titles available, and includes most high school and college reading lists. Though teachers and parents generally frown on kids using study aids such as SparkNotes without reading the full text, used well these particular resources can help teens better understand and analyze the literature after reading it.
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