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Slowness in Eclipse Juno (4.2)

I had some problems with slow switching tabs in Eclipse 4.2 Juno and I was hoping someone might have the answers. The initial delay was about 10 seconds, which dropped to 2-4 as soon as I specified java vm in the eclipse.ini file, but it is still slower than I think. I removed all the add-ons that I thought might offend, and the active ones are listed below, and I believe that the system will be more than adequate, but in any case I have listed the specifications. Thanks for any help you could give me.

System:
Windows 7x64
1.73 GHz i7
RAM 8 GB

Eclipse Addons:
Eclipse Color Themes
PHP Development Tools (PDT)

Eclipse.ini:

-vm C:\Program Files\Java\jre7\bin\javaw.exe -startup plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar --launcher.library plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20120522-1813 -showsplash org.eclipse.platform --launcher.XXMaxPermSize 512m --launcher.defaultAction openFile -vmargs -server -Dosgi.requiredJavaVersion=1.7 -Xmn256m -Xms4196m -Xmx4196m -Xss4m -XX:PermSize=256m -XX:MaxPermSize=256m -XX:+UseParallelGC
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13 answers

There are some notable UI performance issues in Juno. See lengthy discussion at https://bugs.eclipse.org/bugs/show_bug.cgi?id=385272

Juno Service Release 2 (SR2) has been released and many UI performance issues have been fixed.

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You can install the Eclipse UI Juno SR1 Optimizations hotfix by following the instructions on this link, provided that you are using the Eclipse Juno SR1 release and are facing this slow issue: http://wiki.eclipse.org/Platform_UI/Juno_Performance_Investigation

Since the content at the above link has been updated, it no longer provides part of the patch download. For anyone looking for download information, all you have to do is install Juno SR1 Patches - Eclipse UI Juno SR1 Optimization from the update site: http://download.eclipse.org/eclipse/updates/4.2 - using the menu " Help "→" Install New Software "

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Change the heap size of java memory. Look at -XX: PermSize = 256 m -XX: MaxPermSize = 256 m and change it to 1024 m. There you will find the link: http://www.jguru.com/faq/view.jsp?EID=424214

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Try changing the theme to Classic .

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all together gave my Juno great speed :)

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I had the same problem, I upgraded to Eclipse Juno 4.2.2 and my system: Intel Core 2 Quad Q9550 2.83Ghz 8.00 GB RAM Windows 7 Ultimate x64. I also use GIT .

When I right-clicked on my project, it took a long time (~ 40 seconds) before I could do anything.

This was until I ran git gc on my Linux server (on another system) with the following result:

  • Counting objects: 6454, done.
  • Delta compression using up to 8 threads.
  • Object compression: 100% (5983/5983), done.
  • Object writing: 100% (6454/6454), done.
  • A total of 6454 (delta 1785), reused 0 (delta 0).

After that, I updated my project, and from that moment on, an instant reaction to the action of a mouse button is instant.

I hope this helps everyone, I just need to share this with you.

My Eclipse ini:

 -startup plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar --launcher.library plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20120913-144807 -showsplash org.eclipse.platform --launcher.XXMaxPermSize 256m --launcher.defaultAction openFile -vmargs -server -Xmn128m -Xms2048m -Xmx2048m
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I could not update my eclipse using the service build, but I found an unofficial patch in the eclipse problem tracker, which made my eclipse much faster. See this answer: fooobar.com/questions/306082 / ...

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Install 4.3M4 - they significantly improved speed, and now I finally made the transition from 3.8 :)

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I had Eclipse Juno very slowly when many Java projects were imported into it (I'm talking about 45-50). What I ended up with is:

  • A "Work Set" has been created to separate projects according to the "Components".
  • Use the Workspace to determine which Java projects are not needed for Open.
  • Close unnecessary projects.

As a result, Eclipse is as fast and fast as it should be. Performance is close to performance 3.8.

Also, in the Package Explorer view in the Java or Debug view, I set Top Level Elements to Work Sets to have a clearer idea of ​​where I code in my application.

Thus, the search results and the search results "Find type / Find resource" are also more effective.

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The eclipse was very slow when I tried and switched between tabs (time about 2-3 seconds). I changed my eclipse.ini in this way and this does not happen anymore (my RAM is 2 GB):

 -startup plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar --launcher.library plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.200.v20120522-1813 -product com.android.ide.eclipse.adt.package.product --launcher.XXMaxPermSize 256m -showsplash org.eclipse.platform --launcher.XXMaxPermSize 256M --launcher.defaultAction openFile -vmargs -Dosgi.requiredJavaVersion=1.6 -Declipse.buildId=v21.0.1-543035 -Xms1024m -Xmx1024m
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Another Eclipse error that uses a processor too large is caused by regular parsing of regular expressions in the Console, see https://bugs.eclipse.org/bugs/show_bug.cgi?id=175888 The workaround is not to write very long lines in System. out / err.

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Upgrading to Eclipse 4.3 gave me a huge performance boost.

They seem to have fixed many performance bugs in the new version.

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Open Eclipse, go to Windows> Close All Perspectives, then confirm and restart Eclipse.

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