Minecraft Forums

In my FTB Unleashed worlds, I keep getting lag spikes that seem to be pretty consistent in length and time before another one. I read that it was Java's trash collector kicking in once the used memory reaches a certain point causing a spike. If you go through a Mystcraft portal or enter a new dimension, the used memory will go up really quick, then slow down but always go up until the trash collector kicks in. I've read that basically everyone can get this but how can I/is it possible to reduce/eliminate this?