Eclipse is very slow when using Code Assist (org.eclipse.mylyn.java.ui.javaAllCompletionProposalComputer)

eclipse axis2 mylyn
EugeneP picture EugeneP · Jan 22, 2010 · Viewed 9.2k times · Source

Can you guess what happens?

I generated a client stub using Eclipse WTP [Axis2] and while working on a client I get Eclipse working very slowly when it tries to use Code Assist, that is, press a dot to get a list of methods, there's up to 30 seconds hang-ups of the workbench.

eclipse.buildId=M20090917-0800 java.version=1.6.0_15 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=ru_RU Framework arguments: -product org.eclipse.epp.package.jee.product Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product

Warning Fri Jan 22 16:40:51 MSK 2010 The 'org.eclipse.mylyn.java.ui.javaAllCompletionProposalComputer' proposal computer from the 'org.eclipse.mylyn.java.ui' plug-in did not complete normally. The extension took too long to return from the 'computeCompletionProposals()' operation.

Answer

ueouoeuoeu picture ueouoeuoeu · Feb 26, 2011

I was mucking with eclipse.ini and doubled the XXMaxPermSize to 512M. According to Sun:

MaxPermSize specifies the the maximum size for the permanent generation heap, a heap that holds objects such as classes and methods.

Like magic, the hang is gone. I would not be surprised if Eclipse uses the permanent generation heap to store/sort candidates for Content Assist and thrashes if the heap gets overloaded.

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