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Exanadu

0.77.5 Lag Spikes of Death

5 posts in this topic

Enjoying the new version of TFC but am getting some serious frame rape and lag spikes wanted to see if others are having the same problem. Previous versions of TFC ran much smoother.  I am getting 40ish fps and spikes down to 5 fps 

 

Using forge 837

 

Specs

 

AMD Phenom II 965 3.4ghz Quad core

16gb Corsair Vengance pc16000 ram

Nvidia GTX 680

Raid 0 Corsair F40x4 SSD's

Acer 120Hz 3d Monitor

 

 

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I had similar problems, myself, but managed to fix them.  I don't know if the same fix will work for you, as my computer is a little odd (3GB of ram, but it's old DDR).  For me, it seems most of the lag was due to Java's garbage collector.

First step was to install Optifine (Standard or Light).

Next, add "-Xincgc" to the JVM arguments in the launcher.  This changes the behavior of Java's garbage collector to one that doesn't stall out as often when under load.

Finally (and here's the weird one) I reduced the amount of ram given to minecraft. It seems (at least on 32-bit) that 512MB is plenty for Terrafirmacraft, and any more just puts load on the garbage collector and steals ram from OpengGL somehow (this fixed a recurring OpenGL "Out of Memory" error)

If you're having stalls/freezes every few seconds after the game's been running a while, it just might be the garbage collector causing you grief.  You might want to check your output-clieng.log file for the "1285: Out of memory" error.  If that's happening, then switching to "-Xms512M -Xmx512M" in the JVM arguments might just help.

Hope some of this helps you clear up that lag!

Edited by CouchLizzard
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ok testing it the way you said didn't improve the lag spikes but the frame rate is where it should be now.  so now instead of 40 fps with lag spikes down to 5 fps its 120 fps down to 5 fps . but at least its smoother.  

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came to report that they fixed the lag spikes it was the barrels apparently lol much better now.

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I didn't have any barrels in my world and still get lagspikes of death.

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