Dynmap Rendering Optimization

[dmccoystephenson]

Is your feature request related to a problem? Please describe.

Server owners are reporting serious lag being caused by Medieval Factions in connection with the dynmap integration. The algorithms for rendering should be looked at and optimized.

Describe the solution you'd like

Dynmap rendering should attempt to render less at a time using a batch system.

Describe alternatives you've considered

• I had considered adding cooldowns, but a debounce already exists for this.
• Another alternative would be to introduce a config option for whether or not the dynmap gets updated after the initial update occurs at server start. EDIT: Opened #1767 for this.

Additional context

The lag only occurs on large factions when they render.

[dmccoystephenson]

Some ideas for optimization:

• Add config option to calculate realm territories (false by default)
• Add config option to display only minimal information (like a faction's name) on the dynmap (false by default)
• Move towards batch processing; set a limit on how much can be processed at a time and queue tasks for later

By default, we could set up minimal processing in the MfDynmapService and still offer the same features for servers that opt into them.

Batch processing would result in consistent processing requirements, but risks putting the plugin behind and showing outdated information.

[Specifix5]

bump, my server is suffering, please help