Unleashed - Stuttering/lag

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Kajin Style

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Jul 29, 2019
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So I just downloaded FTB 1.1.3 and also the server with it. I'm running both on my machine. Now before you blame my machine here are it's specs:

-16 gig RAM
-Quad core processor
-670 GTX video card


So plenty of horse power to go around, right? Well while playing the game I get some serious stuttering. The frame rate says 30-60 but as I move around there is just this awful stuttering. It doesn't matter if I have the server running or not. I still get it.

Speaking of the server, my CPU is nearly at 100% and it's suppose to be a quad core machine, ha. I only use this server for me and a few close friends. So I don't have any bukkit plugins or any of the such on the server. I also don't have optifine on my minecraft either since that apparently made things worse. I didn't mess with the settings enough to see if things could improve. I might give it a shot later. Though I don't know if optifine would actually lower the CPU usage or not while fix my stuttering problem.

Any suggestions/thoughts on how to fix this?


EDIT: Oh yea I should mention I'm also using the Soartex texture pack too.
 
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UniZero

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Oct 3, 2012
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Regardless of how powerful your system is trying to use it to host a server is always going to put more strain on it than normal especially when running a heavily modded minecraft. Have a look at this thread and see if this helps.

You may also, just to rule out any problems with your setup, try the steps here.
 
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Eyamaz

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Jul 29, 2019
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Minecraft is a single core program, it's not coded to take advantage of multiple cores.

If you insist on running the server on the same computer you are playing from, you can switch the affinity of the two so that they run on separate cores.
 
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Kajin Style

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Jul 29, 2019
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Alright.. having updated java to update 25;re-installed FTB client; and installed opitifine. The only fix that seem to made a huge difference was setting the server on to it's own single core. The launcher could stay multi-core and be fine but the moment the server was multi-core via affinity on task manager. My game would stutter.

I have done this before when there was FTB Ultimate. I've done it with tekkit in the past as well and didn't encounter this problem. It's only with Unleashed that I'm having this trouble now.

I haven't tried the JVM arguments yet. That's next.
 
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Kajin Style

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Jul 29, 2019
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Another update. The server is definitely hogging a lot more resource of some kind, compared to previous servers I have runned. I was able to play other games with the server running but the server cause other games to stutter as well about half a second or quarter of a second pause every 5 seconds or so. It's far more noticible now. The unleashed server is real brutal. I don't get this problem with tekkit server or even the previous FTB ultimate edition servers.
 
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