Hello ! So, excuse me, i have a server 1.7.10 with a lot mod, i play it with 2 other friend but there is a lot of lag/rollback, for exemple, when we break a block, the block respawn and break after 2-3 seconds, same with mob etc, i looked into the log and i have an error who came often ;
[22:46:44] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5251ms behind, skipping 105 tick(s)
[22:47:01] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2360ms behind, skipping 47 tick(s)
[22:47:22] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5719ms behind, skipping 114 tick(s)
[22:47:37] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5478ms behind, skipping 109 tick(s)
[22:48:05] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 12104ms behind, skipping 242 tick(s)
[22:48:18] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 7652ms behind, skipping 153 tick(s)
[22:48:35] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2750ms behind, skipping 55 tick(s)
[22:48:57] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4840ms behind, skipping 96 tick(s)
[22:49:11] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2372ms behind, skipping 47 tick(s)
[22:49:27] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2220ms behind, skipping 44 tick(s)
[22:49:49] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2878ms behind, skipping 57 tick(s)
[22:50:12] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 8562ms behind, skipping 171 tick(s)
[22:50:14] [Server thread/INFO]: SoBobad fell from a high place
[22:50:32] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 7363ms behind, skipping 147 tick(s)
[22:50:51] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5367ms behind, skipping 107 tick(s)
[22:51:07] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2176ms behind, skipping 43 tick(s)
[22:51:35] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5558ms behind, skipping 111 tick(s)
There is my mod list (If the bug is from a shitty mod or something) ;
adventurebackpack
chocolateQuest-
coroutil
ichunutil
Ironchest
magicalcrops-
modern warfare
tropicraftv6
witchery
Morph
MrcrayfishFurniture
Necromancy
NotEnoughltems
openBlocks
OpenModsLib
PlayerAPl
RandomThings
Ruins
Skinport
The Mists of RioV
TheBetweenlands
AnimationAPl
Archimedeships
Architecturecraft
Baubles
Bibliocraft
Biomesoplenty
Botania
Chisel
Codechickencore
CustomMobspawner
Decocraft
Mrzharks Mocreatures
So, if there a solution against that or something, thanks ! (sorry for my bad english i'm french, keep up your great work, we love aternos <3)