Request [FTB Infinity Evolved] Weird lag in my world

[RabidBurn]

Hey guys,
So I've been playing an expert mode skyblock on Infinity Evolved (I started it before they released the pack, and I haven't really felt like restarting from scratch). Originally, there was no world lag. Then, as I got more stuff, there was a little bit, but now it's practically unplayable! Constant stuttering, regardless of what I put my settings on. Adding OptiFine helps for the few seconds that the game actually runs before it crashes.

I'm pretty sure my PC's not the problem, but here are the specs:

• i7 4790k overclocked to 4400MHz, watercooled
• GTX 980ti, watercooled
• 16Gb DDR3 HyperX Fury
• 2x 120Gb Samsung Evo 850 in Raid0

The server is running on a Lenovo ThinkCenter I had lying around (also a core i7). It's running Hyper-V with an Ubuntu Server 15.04 VM, and I've allocated 3Gb of RAM to the FTB server. I know it's not the problem, because when I copy the world files over to my PC and run it locally, I get the exact same performance.

It seems to me like there's something in my world that's causing the issue, but I'm not sure what it is, and I don't really feel like running around breaking my machines until I find the problem.

So, tl;dr, anyone have any ideas what random machines could be causing lag in my world? I can list the contents of my world as well, if necessary.

Thanks!
RabidBurn

 

[DeathOfTime]

I noticed the other day my framerate dropped by half (80fps to 40fps) after I placed down some machines. Not for sure of the exact cause.

Might be worth loading and learning up on opis though. I hear that is rather good for figuring stuff out. Might help to figure out the lag type and the possible cause for that lag type is.

 

[RabidBurn]

I noticed the other day my framerate dropped by half (80fps to 40fps) after I placed down some machines. Not for sure of the exact cause.

Might be worth loading and learning up on opis though. I hear that is rather good for figuring stuff out. Might help to figure out the lag type and the possible cause for that lag type is.

Yeah I'd heard that OPIS might be useful. I guess I'll check it out.

 

[RabidBurn]

OPIS didn't reveal anything particularly useful. Anybody else got any suggestions?

 

[DeathOfTime]

OPIS didn't reveal anything particularly useful. Anybody else got any suggestions?

If Opis isn't saying anything then it probably isn't lag that opis can see. Opis I believe deals more with a specific type of lag (tick lag?). Even in single player. You might have a different form of lag. Such as rendering lag, loading lag, etc. It might be worth describing thoroughly what you mean by lag and possibly searching the net for plausible causes.