[ sts-2.8.1.RELEASE ] getting extremely slow and then freezing STS window too frequen

[eva500]

I've been using sts-2.8.1.RELEASE a couple of weeks.
Now it's getting extremely slow whenever I edit and save, and then window got stuck -- freeze the STS window.
Thus I cannot use STS in this circumstances.
Is there something wrong?

[Martin Lippert]

Hey!

Can you check the memory settings for your STS instance? And maybe how much memory it actually uses (by enabling the heap monitoring in the preferences, you can a nice little heap indicator at the bottom right of the workbench window). It sounds like there could be a memory problem. The other inspection that you could do is to capture a stack trace while STS is being so extremely slow (while an operation takes ages to complete), using jps and jstack. That could help identifying performance or network problems.

-Martin

[eva500]

Hey.
I couldn't find the a nice little heap indicator at the bottom right of the workbench window,
but I just modified the STS.ini file for sts-2.8.1.RELEASE as follows:
I don't know the meaning of each line, so I googled it and modified anyway.
Could you explain each line?

-Xmn128m
-Xms1024m
-Xmx2048m
-Xss2m
-XX:PermSize=128m
-XX:MaxPermSize=512m
-XX:+UseParallelGC

================================================== ==
-vm
/usr/lib/jvm/java-6-openjdk/bin/java
-startup
plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1. 100.v20110505
-product
com.springsource.sts.ide
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xmn128m
-Xms1024m
-Xmx2048m
-Xss2m
-XX:PermSize=128m
-XX:MaxPermSize=512m
-XX:+UseParallelGC
================================================== ==

[Martin Lippert]

Hi!

http://www.oracle.com/technetwork/ja...sp-140102.html
http://docs.oracle.com/javase/1.5.0/...dows/java.html

HTH,
Martin

[eva500]

Thanks a lot