Minecraft Forums

I tried posting in already existing threads for this, but I couldn't see the reply button, I assumed it was locked. And I'm sorry if this is not posted in the appropriate section, this is my first post.



Anyways, I've followed tutorials for editing the info.plist (mac) file to increase RAM. I understand it, it makes perfect sense, and I've modified the file, but I see NO difference when I press F3 ingame.



I've changed the default memory line to this: <string>-Xms12288M -Xmx14336M</string>



My Mac has 16GB of ram, so I can allocate a TON (this is 12GB - 14GB). I'm thinking that MC should be screaming fast now, but it's no different, and in the F3 screen it still just says something like:



Mem: {60-70%} $usage/1011MB

Allocated: 100%/1011MB



($usage is of course the varying number that is my currant usage, and the percent varies somewhere in that range, though occasionally it maxes at 100% and the game begins running choppy)



Now, I expect it to read something like this after changing it:



Mem: {verylow%} $usage/12288MB

Allocated: 100%/14336MB



But it doesn't. It always reads EXACTLY to 1011MB.



Someone please help me figure out what's going on?

The exact line you put is

"<string>-Xms12288M -Xmx14336M</string>"?

Or is it

"-Xms12288M -Xmx14336M"?

Because I'm pretty sure the second works and the first doesn't. If not, then perhaps

"-Xmx14336M -Xms12288M" would work.

Or how about just

"-Xmx14G -Xms12G"

Also, which version are you using? 1.6? 1.7? 1.8?

Be glad that you failed at force feeding MC such a ridiculous amount of memory. You don't want to do this. In fact you better undo it.

If your info.plist is being used, then it is ONLY being used to control the Launcher. The Launcher definitely does not need 12G of memory, and if it does have it as a result of your changes, then it is wasted and probably having a large negative impact on your computer's performance of other things (like Minecraft the game).

If your usage is regularly over 50%, then it just might be advisable to try increasing Xmx to 2G but there is no reason to do more, and more would reduce your performance. Having more than you need just causes Garbage Collection to happen less frequently, but it will take longer, which is bad if you want smooth game play.

The proper place to attempt to adjust Minecraft (the game)'s memory is in the launcher profiles.

Thanks for the replies everyone. I clearly don't know much about how to do this. I just assumed more = faster!!

Anyways, gerbil, thanks for the tip. I found where to increase it in the launcher profile, and it worked.