Memory Issue

[CrippledPotato]

Basic details

• Are you using Java 8, 64-bit?: yes
• Did you add any additional mods: no
• Crash/latest log link (if applicable): no crashes

Describe the issue
There seems to be a memory issue where the game uses an excessive amount of memory and even goes well above the amount allotted so I decided to run a test and as everyone knows it is not a true test with out a control so I will start there at vanilla Minecraft.

Latest version of Minecraft with 8GB of allotted memory.

• Sitting in the menu for 10 mins.
  

• After creating a new world.
  

You can see that vanilla Minecraft is no where near hit 8GB of memory so onto the mods. I decided to start with Tekkit Legends and then move to Hexxit II. Once again with 8GB of allotted memory.

• Sitting in Tekkit Legends menu for 10 mins.
  

• After creating a new Tekkit Legends world.
  

• Sitting in Hexxit II menu for 10 mins.
  

• After creating a new Hexxit II world.
  

As you can see once a world was created Hexxit II went well over the allotted 8GB of memory almost hitting 10GB. But lets just chalk this comparison up to Tekkit Legends being an older mod pack with less mods. So I decided to find a newer mod pack with a lot more mods. Sky Factory 4 once again being allotted 8GB of memory.

• Sitting in Sky Factory 4 menu for 10 mins.
  

• After creating a new Sky Factory 4 world.
  

As you can see Sky factory 4 is a much more comparable mod pack and while it got close to it's 8GB of allotted memory that does not excuse Hexxit II for going almost 2GB over what it was allotted. But I still was not happy I needed more data so I decided to up the allotted memory for Sky Factory 4 and Hexxit II to 16GB and run the test again.

• Sitting in Hexxit II menu for 10 mins.
  

• After creating a new Hexxit II world. (yes another new world)
  

• Sitting in Sky Factory 4 menu for 10 mins.
  

• After creating a new Sky Factory 4 world. (yes another new world)
  

So my final results were in and while with the increase of allotted memory came with the obvious increase in memory usage you can clearly tell that even compared to similar mod packs Hexxit II uses an unacceptable amount of memory and even surpasses with is allotted. So I believe that I can confidently say that Hexxit II does indeed have a memory issue.

Side note while actually playing Hexxit II for around 30mins I did get it to got over even 16GB of memory though that was not part of the strict testing and has been left out.

[xJon]

Hi, thank you for posting this! Did you read my comment over #10 (comment)?

[CrippledPotato]

I am aware but clearly there is an issue because it is only Hexxit II that does this.

[xJon]

8 GB of allocated RAM would be considered giving Minecraft more RAM than it needs in Hexxit II's case. The recommended allocation is 3-4 GB.

[CrippledPotato]

Ah of course how could I be so naive as to use to much ram.

So seeing my fault I have done the test again.

• In menu Hexxit II
  

• New world Hexxit II
  

• In menu Hexxit (the good one)
  

• New world Hexxit (the good one)
  

I am baffled, I never would have thought that using the correct amount of ram would cause the same issue. But since it does might as well TRY and break the GOOD HEXXIT.

• In menu Hexxit (the good one)
  

• New world Hexxit (the good one)
  

Well now I could have never expected that. Not only did it not exceed the memory limit but it did not even get close and it even did not take more memory then what it needed. I wonder if this is how mod packs are supposed to work?

I have to applaud you good sir you have managed to make Hexxit worse.

[xJon]

Hi, I appreciate the care for this project and your report, but unfortunately this is just normal behavior for Java Minecraft 1.12.2.
Older versions of modded Minecraft and newer versions of vanilla Minecraft are not the best comparisons, nor is Sky Factory 4 due to its already high RAM allocation requirement.
You will find similar behavior with The Classic Pack, which is another smaller 1.12.2 modpack, I will attach examples:

• 
  (Main menu)
  
  (New World)
  

• 
  (Main menu)
  
  (New World)
  

• I could go on with a 16 GB example, but unfortunately my PC only has 16 GB of RAM installed.

There is nothing out of the ordinary with Hexxit II's memory usage, beyond the existing problems of Java. That being said, no one is forcing you to play Hexxit II and you are more than welcome to continue playing the original Hexxit for Minecraft 1.5.2, which did have much lower RAM requirements.