5 ms·

Does anyone know why Eclipse is dog-slow on OS X? crappy JVM implementation or something else.

by martythemaniak 16y ago

dreur 16y ago
On Linux 32bits and 64bits it is faster than Galileo. (Seems faster and uses less memory)
- ebtalley 16y ago
  Has anyone had any issues switching? I just got galileo up and running to my specs. I would hate to change environments for memory benefits and then get bogged down in version minutia.
  - brown9-2 16y ago
    Not sure which OS you are using, but at least on Windows, different versions of Eclipse can live side-by-side in different directories. So you should be able to test drive a new version without messing up your old version (might want to try setting up a different workspace while experimenting though).
    - ebtalley 16y ago
      True, I meant compatibility with the existing plugins out there though, Maven, Subversion, PDT+debugger, PyDev, etc. Should have been clearer on that point.
ido 16y ago
Seems pretty fast on my low-end previous-gen mac mini. How much RAM do you have?
ryanhuff 16y ago
I had performance issues running on Leopard. Changing to Java 1.6 seemed to improve things. I finally upgraded to Snow Leopard, and am eager to see if things (with Helios) have improved. I'll post an update later tonight.
mclin 16y ago
Try increasing the ram limit in eclipse.ini. It's really stupid. Find eclipse.app right click and choose Show Package Contents Contents->MacOS->eclipse.ini change this line: -Xmx256m to something like -Xmx512m
- pohl 16y ago
  More memory will help, but just as important is adjusting the garbage collection algorithm and disabling the unnecessarily paranoid class verification that java does: http://davidsalter.co.uk/blog/?p=332 http://davidsalter.co.uk/blog/?p=332 Here's mine: -XX:PermSize=256m -XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC -XX:CMSIncrementalMode -XX:CompileThreshold=100 -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled -Xverify:none -Xms1650m -Xmx1650m Edit: Yeah, 1650m is way more memory than I really need. I'm just fortunate enough to have 8G in this machine so I had plenty to spare. Edit again: I use emacs in Terminal to edit /Applications/eclipse/Eclipse.app/Contents/MacOS/eclipse.inito add these parameters

Does anyone know why Eclipse is dog-slow on OS X? crappy JVM implementation or something else.

dreur 16y ago

On Linux 32bits and 64bits it is faster than Galileo. (Seems faster and uses less memory)

ebtalley 16y ago
Has anyone had any issues switching? I just got galileo up and running to my specs. I would hate to change environments for memory benefits and then get bogged down in version minutia.
- brown9-2 16y ago
  Not sure which OS you are using, but at least on Windows, different versions of Eclipse can live side-by-side in different directories. So you should be able to test drive a new version without messing up your old version (might want to try setting up a different workspace while experimenting though).
  - ebtalley 16y ago
    True, I meant compatibility with the existing plugins out there though, Maven, Subversion, PDT+debugger, PyDev, etc. Should have been clearer on that point.

ido 16y ago

Seems pretty fast on my low-end previous-gen mac mini. How much RAM do you have?

ryanhuff 16y ago

I had performance issues running on Leopard. Changing to Java 1.6 seemed to improve things. I finally upgraded to Snow Leopard, and am eager to see if things (with Helios) have improved. I'll post an update later tonight.

mclin 16y ago

Try increasing the ram limit in eclipse.ini. It's really stupid. Find eclipse.app right click and choose Show Package Contents Contents->MacOS->eclipse.ini change this line: -Xmx256m to something like -Xmx512m

pohl 16y ago
More memory will help, but just as important is adjusting the garbage collection algorithm and disabling the unnecessarily paranoid class verification that java does: http://davidsalter.co.uk/blog/?p=332 http://davidsalter.co.uk/blog/?p=332 Here's mine: -XX:PermSize=256m -XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC -XX:CMSIncrementalMode -XX:CompileThreshold=100 -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled -Xverify:none -Xms1650m -Xmx1650m Edit: Yeah, 1650m is way more memory than I really need. I'm just fortunate enough to have 8G in this machine so I had plenty to spare. Edit again: I use emacs in Terminal to edit /Applications/eclipse/Eclipse.app/Contents/MacOS/eclipse.inito add these parameters