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[Guide] How to allocate more RAM to Minecraft
02-14-2018, 10:55 AM
Post: #1
[Guide] How to allocate more RAM to Minecraft
In this guide we'll have a look at how to increase the RAM available for Minecraft to use. By default it's only set at 1GB, which can lead to a laggy game experience, which simply won't do....so, here we go:

Note: Please check how much RAM your system has, and do not be tempted to allocate it all to MC. Your background programs need some too Wink

Step 1:

Load up your launcher, and select the "Launch Options" tab

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Step 2:

Just underneath "Launch Options" turn on "Advanced Settings", then click OK on this message

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Step 3:

Select the profile which you wish to allocate additional RAM to. In this example, I've created a new profile called "1.12.2 more RAM"

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Step 4 (If creating a new profile):

Make sure to choose the correct version of MC, and to include forge, optifine or any other mods you require

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Step 5:

Turn on the JVM Arguments slider. You will see that the -Xmx1G part of the command shows how much RAM you have allocated currently. In this example, there is the standard 1GB

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Step 6:

Delete the contents of the JVM arguement box, and paste in the following:

-Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M

NOTE: I've changed this to -Xmx2G to allocate 2GB, but feel free to change this up to 3 if your system will support it.
There is no point going above 3 as Minecraft simply doesn't know what to do with anything above this.

Once you've done this, press "Save"

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Step 7:

Use the "News" tab at the top to return to your launch screen, then make sure to select the new/updated profile from the list before lauching.

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Congratulations, your visits to CVC should be much smoother Smile

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02-14-2018, 11:12 AM
Post: #2
RE: [Guide] How to allocate more RAM to Minecraft
Ty ashy! *rambles around in her pc files freeing up space and slowing down her file manger*
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02-14-2018, 03:23 PM
Post: #3
RE: [Guide] How to allocate more RAM to Minecraft
pixelmon o.O

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