Reposting my posts I have in the Paper & Spigot community here! EDIT: Please see https://mcflag.emc.gs for updated content. Many months ago, I did an extremely extensive study into Garbage Collection and Minecraft, and got a really deep understanding on Minecrafts allocation behavior, general object life expectancy and collection rates. I studied my server for about an entire month. I tweaked various settings, studying the GC log files, studying the various flags documentation, and other perf...