Author Topic: Grinders, redstone, mobs and lag etc.  (Read 4842 times)

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frymaster

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Grinders, redstone, mobs and lag etc.
« on: March 17, 2012, 10:51:18 AM »
We don't have a lot of hard and fast rules on what kind of buildings are allowed, but anything that causes lag to the server could be removed.  This is an overview of things to avoid if you can

Note that the rule on grinders is a hard and fast rule, mainly because it's nicely clear-cut.

Hoppers/droppers

Every hopper loaded in the world requires redstone simulation processing every tick, to check if it can suck items in or push items out.  Because of this, don't use more than you need.  There isn't a hard restriction - by all means use all the ones you have to in order to create awesome sorting systems - but e.g. if you have to transport items long distances, use water flows and ice - they only cause the items transported to require processing (and they cause less FPS drops for players as well)

Grinders

Item grinders work by spawning monsters and them killing them, to get their drops.
XP grinders will spawn monsters, but you have to kill them yourself.  That means the number of monsters constantly accumulates.

Do not go away and leave the second kind running unattended.  That means:

  • Do not go away for extended periods of time while it's running
  • Do not leave it running if you aren't using it (in other words, make sure it has an off button)

Causing extreme amounts of monsters to be in an area causes extreme CPU usage, which not only inconveniences minecraft users but also users of every other service on the box.  If you plan on leaving the computer, either make sure the spawners are on an appropriate timer, or turn them off.

Note that the enderman farm can be left unattended because it's not driven by a mob spawner block or similar - it's already self-limited when the mob count reaches the natural cap.

Self-Propelled piston machines

If you have a piston glider or a similar flying machine that can head off into the distance from now until the end of time, and it's NOT limited in how far it can go, don't idle on it
« Last Edit: April 23, 2016, 16:25:19 PM by frymaster »

jcsheffield

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Re: Regarding grinders
« Reply #1 on: March 17, 2012, 10:54:46 AM »
If anyone wants to see how to make an on/off switch, come have a look at the spawners in my house.

frymaster

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Re: Regarding grinders
« Reply #2 on: January 25, 2013, 15:08:45 PM »
A reminder, since there is now the beginnings of an iron golem farm:

It currently has a switch to turn the killing off or on.  Unless you are using the farm, it should be left on the "kill" setting, otherwise the golem levels will build up

(the current setup is temporary since the farm is still under construction)

frymaster

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Re: Grinders, redstone, mobs and lag etc.
« Reply #3 on: January 09, 2014, 12:21:45 PM »
updated this to ask people to also avoid long hopper chains (use water/ice instead) - unlike the rule on unattended grinders, this isn't a hard-and-fast rule because I'm not going to tell people that e.g. 30 hoppers is ok but 31 is bad - just use your judgement.  As a bonus, it'll help your FPS, too

frymaster

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Re: Grinders, redstone, mobs and lag etc.
« Reply #4 on: April 25, 2016, 13:28:01 PM »
Updated this to talk about self-propelled piston machines (tl;dr don't :P )