Dap is our lag monitoring and prevention plugin. Its two main functions are to monitor the server and delete extremely laggy blocks as well as providing a way for players and staff to check on things that are causing lag. You can do this by running the command /dap, which should produce a message in chat that looks like the one below:
Let’s break this down, section by section.
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The first section lists the locations and names of the 5 laggiest blocks on the server. If any of these is red, it can be fixed simply by breaking the block on that spot. If it reads a machine, chances are the machine is backed up and can be fixed simply by emptying the output; otherwise, break and replace the block, then wait five minutes and check DAP. If it’s still red, think about removing it for a while.
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The second section lists the five laggiest chunks on the server using chunk coordinates. Chunk coordinates can be found on your F3 screen near your coordinates. These chunks may be lagging because of a laggy machine found on the top section of DAP, a high number of entities such as cows or XP orbs, or simply because they contain a large number of machines. Lagging chunks can be difficult for staff to troubleshoot, so if you see one of your chunks getting high on DAP, it may be best to go through it and try to shut down machines or mob spawners yourself for best results. Remember: building mob spawners with an obvious shutoff switch makes life easier for everyone.
In the event that your DAP readout looks like this, it means a chunk near you is lagging. Please, either check it yourself or let a staff member know to help preserve TPS.
The third and fourth sections are less important and are more for staff usage.
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The third section lists which entities are causing the most lag across the server. This has very little to do with entities themselves in most cases, and more to do with their usage: things that people usually have a lot of, like logistics pipes or conduit bundles, tend to show up in this section often.
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Finally, the fourth section shows which entities are creating the most lag on average. This section can generally be ignored, as if anything’s red on here, the individual blocks will be showing in the first section anyway.
