Launcher wont save RAM settings in game

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tonttusiipi

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Jul 29, 2019
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Hey there. Im trying to fix my kids minecraft that runs with FTB launcher. We are having a problem with RAM not being what i set it to. So from the launcher options i set the RAM to 4.0 GB and launch the game. When in game i press f3 and look to top right corner where it says "Used memory : 70% (700mb) of 990mb"

Issues this causes are that minecraft just sometimes shuts down without any warnings and we have to reboot FTB from the start. Why wont it use the 4Gb memory i set it to?

ps: im not a native english speaker. Sorry for typos.
 
Okay. So after using Google i found and added line: -Xmx4096m to the Additional Java Parametres slot in advanced options in the launcher. But it did not do a thing. Am i supposed to add something else there?
 
I had before and wondered why the slider did not have more than 1gb available. Then i uninstalled that and downloaded 64bit java. Now i have the option to move the slider to 16gb. But it makes no difference where i set it.
 
Dont know if this has anything to do with it but in minecrafts snooper settings are few lines that say:

Java_version 1.7.0_40
jvm_arg[0] -xms256M
jvm_arg[1] -xmx4096M
jvm_arg[2] -xx:+useconcmarksweepgc
jvm_arg[3] -xx:+cmsincrementalmode
jvm_arg[4] -xx:+aggressiveopts
jvm_arg[5] -xx:+cmsclassunloadingenabled
jvm_arg[6] -xx: permsize=128m
jvm_arg[7] -xx: permsize=128m
jvm_arg[8] -xms1024m
jvm_arg[9] -xmx1024m
jvm_args 10

Those lines 8 and 9 makes me wonder. Do they overwrite the 4096m that i set before? Or are those normal?

Allso. when i go to cmd.exe and type java - version it gives:

Picked up _JAVA_OPTIONS: -xms1024m -xmx1024m
java version "1.7.0_40"
java SE runtime environment (build 1.7.0_40-b43)
java hotspot 64-bit server VM (build 24.0-b56,mixed mode)

So it appears that some java options set it to 1024m but i have no idea where to change these options. I checked the Configure Java options through but there isnt anything like that.
 
UniZero said:
open java from the control panel and click java tab then view as it maybe in there. If so then remove it.
Click to expand...
I did that earlier. The runtime parametres slot was empty. Theres nothing there. I allso tried to add -xmx4096m there but it dont make any difference either.
 
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