PHPStorm/Webstorm increase memory to more than 512MB

jvm out-of-memory phpstorm webstorm windows-7-x64
Ron picture Ron · Aug 28, 2014 · Viewed 59.6k times · Source

I'm using PHPStorm under Win7 64bit with 64bit Java (latest version I guess) and working currently on an insanely big and chaotic project. There are many classes containing 10k LOC and more. Therefore my PHPStorm runs out of memory once in a while.

I get this nice Out-of-Memory dialog suggesting increasing my memory settings. I currently have set in my PhpStorm.exe.vmoptions:

-server
-Xms128m
-Xmx512m
-XX:MaxPermSize=250m
-XX:ReservedCodeCacheSize=64m
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+UseCodeCacheFlushing
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50

The problem is: When I increase my memory to be used in this file I get the following error when starting the program:

Failed to create JVM: Error code -4

I Googled around but nobody seems to want the memory to be more than 512MB.

Does anybody know what I can do to use PHPStorm without any hassle again?

Sure, I can reset the cache but this is not a permanent solution, right?

I read somewhere that adding this line to my vmoptions is a good idea, but I don't see any difference:

-server
....
-XX:MinHeapFreeRatio=15

Answer

Ernestas Stankevičius picture Ernestas Stankevičius · Jun 27, 2016

Changing memory settings for PHPStorm now has a menu option:enter image description here

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