Server performance settings

celeron55
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Joined: Tue Apr 19, 2011 10:10

Server performance settings

by celeron55 » Fri May 04, 2012 10:45

Just thought this would be useful for many: You can lower the server CPU and bandwidth usage a lot by fiddling around with the configuration. I used these settings on the c55.me server, until I shut it down when I got fed up with griefing:
Code: Select all
max_block_send_distance = 6
max_simultaneous_block_sends_per_client = 1
max_simultaneous_block_sends_server_total = 20
active_block_range = 1
server_map_save_interval = 15.3


2014-03-28:
Note: the above is designed for a Pentium 4 machine (slow) with 1GB of RAM (enough) and an ADSL connection (very slow). For eg. a VPS, you're going to want something almost completely different.

This setting is the most obvious one. Increase if you want to give your players a wider view of the world from standstill, decrease if that causes too much bandwidth usage. The default is 9.
Code: Select all
max_block_send_distance = 9


You can limit the amount of processing caused by ABMs and entities by lowering this setting:
Code: Select all
active_block_range = 2

And by increasing this value:
Code: Select all
dedicated_server_step = 0.1


If you have plenty of bandwidth at your disposal, you should use something like this to fully utilize it with a large amount of players (this might be set as the default in later versions):
Code: Select all
max_simultaneous_block_sends_server_total = 10000


You should lower this value if your players use slow computers, or raise it if they use fast computers:
Code: Select all
max_simultaneous_block_sends_per_client = 10


This will increase the writing speed of sqlite by 15 times to slightly more than that of leveldb, by disabling part of the nuclear bomb proof write checking. This is not the default setting because nobody knows how unsafe it is. Probably not at all.
Code: Select all
sqlite_synchronous = 0


This of course isn't everything you can do. Check out minetest.conf.example for every engine setting out there.
 

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