Lag areas in my friend server

[mcjakki]

Title: Lag areas in my friend server

Version: 3.0.3/3.0.4

OS: Windows 7 HomePrerium 64-bit

Java Version: Java 7

Description of Problem:

My friend made a server and we went playing to the server i had normal fps (60-80) but suddently on the second day when i stepped out of the house and started to get fps like (10-0)and when i went back to the house fps was like(40-50) and chunks updates were in side the house they were 20-30 and out side of the house 0-4.

I have 8GB ram, Radeon HD 6850 1GB and Pentium Dual-Core 2.80Ghz(very bad CPU i know).

Some1 help me

Error Messages:

Error Log:

[FrozenFirebat]

it's an issue with how Minecraft calculates light. seems to be compounded by how tekkit uses the same resources for it's calculations. There is a potential fix that slows down the cycle rate of lighting calculations, but It doesn't currently work with Forge, and thus not with Tekkit.