Configuring STS/eclipse to work fast with macbook pro

Question

I don't have a deep understanding in all of the vm flags and options of the config.ini file that used to run eclipse. I have the default file for STS version 3.3.0.RELEASE:

-startup
../../../plugins/org.eclipse.equinox.launcher_1.3.0.v20130327-1440.jar
--launcher.library
../../../plugins/org.eclipse.equinox.launcher.cocoa.macosx.x86_64_1.1.200.v20130521-0416
-product
org.springsource.sts.ide
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.6
-Xms40m
-Xmx768m
-XX:MaxPermSize=256m
-XstartOnFirstThread
-Dorg.eclipse.swt.internal.carbon.smallFonts
-Xdock:icon=../Resources/sts.icns

I'm trying to optimise the configuration for a MacBook Pro with 2.7 GHz Inter Core i7 processor and memory 16GB 1600 MHz DDR3.

@ThorbjørnRavnAndersen - Very slow :/ I work on a maven project with 200-300 modules and eclipse stucks oftenly. — Avi, Oct 02 '13 at 08:49
@ThorbjørnRavnAndersen - Sorry for my ignorance but where do I see the Activity Monitor? — Avi, Oct 02 '13 at 12:42
Activity Monitor is an OS X program capable of telling you what a given program does. You need to find out if Eclipse is swapping or garbage collecting. You can also use jvisualvm to check gc performance. — Thorbjørn Ravn Andersen, Oct 02 '13 at 13:12
look at [Martin Lippert's answer](http://stackoverflow.com/questions/25901564/optimal-performance-tuning-sts-on-mac-os-x) to my version of this question. Does that help? — Kent Bull, Sep 20 '14 at 17:20

score 1 · Answer 1 · answered Oct 02 '13 at 18:01

This is just a guess, but I'd say you are thrashing memory. To be sure of this, go to Preferences -> General. And then check "Show heap size". If you often see the heap status in red, then you are thrashing memory.

To fix this problem, bump up your Xmx to 1024m or even higher.

Configuring STS/eclipse to work fast with macbook pro

1 Answers1