Memory Issues with Sky Factory

[Vertalli]

Title:

Memory Issues with Sky Factory​

Launcher Version:

​

Modpack:

Sky Factory​

Modpack Version:

2.5.2​

Log Link:

http://paste.feed-the-beast.com/view/9f16e399​

Details of the issue:

Every 2 minutes or so my game will freeze up, the mouse will show a loading icon, then after about 2 seconds it goes back to normal 60 fps. I have noticed via the f3 screen that this happens when my 'used memory' reaches 97% then drops back down to 75%. I have 3gb of ram allocated out of the 8gb I have. I did have 4 allocated, but once the freezes started happening I decreased it to 3 because I heard java has problems when too much memory is allocated. Though that didn't fix the problem at all.

Please help me out. =)​

 

[UniZero]

Post a log

 

[Vertalli]

http://paste.feed-the-beast.com/view/061a36f8

 

[Vertalli]

It happens every time it says:

1. [12:06:09] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2973ms behind, skipping 59 tick(s)

 

[UniZero]

You need to post the log or we can't help. Use pastebin when posting the log not a wall of text.

 

[Vertalli]

I did post a log, it's above that post. The link is awaiting moderator approval

 

[UniZero]

I did post a log, it's above that post. The link is awaiting moderator approval

Without the log I can't do much then. You will need to wait.

 

[Vertalli]

I was able to post the link in the original post at the top, hopefully you can see it =)

 

[lenscas]

1. Memory: 178867224 bytes (170 MB) / 565706752 bytes (539 MB) up to 1908932608 bytes (1820 MB)
2. JVM Flags: 2 total; -Xms256M -Xmx2048M

Unless I am missing something, it looks like your setting of 3GB gets overridden as 2048 MB is only 2 GB. If you want to make sure you have 3 GB allocated you should be able to view the allocated amount of RAM in the f3 menu.

 

[jikuja]

Actually you are allocating only 2GB: MCLauncher.setMemory:273: Setting MaxMemory to 2048.

You could try using newest GC algorithm by adding "-XX:+UseG1GC" as additional java argument. In myu installation it removed GC lag spikes.

 

[Vertalli]

I've been messing around with the allocated memory to see which one works best, but all seem to have that problem. Which is why it says 2gb instead of the 3 I said I put it on. How do I fix the constant freezes though, how much memory do you recommend I allocate?

 

[lenscas]

in general for 1.7.10 packs, I recommend 4.

 

[Vertalli]

You could try using newest GC algorithm by adding "-XX:+UseG1GC" as additional java argument. In myu installation it removed GC lag spikes.

I just add this in "Additional Java Parameters" in Advanced Options in the launcher?

 

[jikuja]

yes

 

[Vertalli]

This seems to have worked. Thanks so much !

 

[Vertalli]

Well, it worked for a couple hours, now its back to hovering around 90% memory and freezing up my game. =/

 

[Vertalli]

The theme seems to be that opening up the game, it's fine on memory for 4-5 hours running it straight, slowly creeping up to the 90% threshold. Once it reaches that I can't play, it freezes every 10 seconds, no exaggeration. The only way I can fix this is by then closing the game and relaunching it. If you need me to post another log from today I can do that.