How to increase application heap size in Eclipse?

Question

Some say I need to do that in Run Configurations for my application. When I open that window, could you please tell me how to set the right argument and the amount of memory? Say how to set 2GB or 1.5GB?

See also http://stackoverflow.com/questions/14382932/increase-jvm-max-heap-size-eclipse — Paul Verest, Mar 13 '15 at 04:34

score 71 · Accepted Answer · answered Mar 09 '13 at 17:03

71

In the run configuration you want to customize (just click on it) open the tab Arguments and add -Xmx2048min the VM arguments section. You might want to set the -Xms as well (small heap size).

answered Mar 09 '13 at 17:03

benzonico

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it didnt work. its still taking the old value -Xmx512M – Jana Dec 02 '16 at 11:03

score 35 · Answer 2 · edited Jan 07 '22 at 08:51

35

Go to Eclipse Folder
Find Eclipse Icon in Eclipse Folder
Right Click on it you will get option "Show Package Content"
Contents folder will open on screen
If you are on Mac then you'll find "MacOS"
Open MacOS folder you'll find eclipse.ini file
Open it in word or any file editor for edit

...
```
 -XX:MaxPermSize=256m

 -Xms40m

 -Xmx512m
```
...
Replace -Xms512m to -Xmx1024m
Save the file and restart your Eclipse
Have a Nice time :)

edited Jan 07 '22 at 08:51

coderzzz18

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answered Oct 20 '14 at 09:01

Fakhar

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Thanks. Did you mean 512 to 1024 ? – Davut Gürbüz Mar 23 '15 at 10:04
1

This will increase the heap size for all of Eclipse, not just the target application. – ThisClark Mar 25 '18 at 06:28

score 17 · Answer 3 · edited Sep 15 '14 at 17:32

17

Find the Run button present on the top of the Eclipse, then select Run Configuration -> Arguments, in VM arguments section just mention the heap size you want to extend as below:

-Xmx1024m

edited Sep 15 '14 at 17:32

Mike Szyndel

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answered Sep 15 '14 at 17:15

sashikanta

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score 2 · Answer 4 · answered Mar 26 '19 at 06:18

2

In Eclipse Folder there is eclipse.ini file. Increase size -Xms512m -Xmx1024m

answered Mar 26 '19 at 06:18

Chinmoy

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score 2 · Answer 5 · edited Feb 27 '20 at 07:09

2

Open eclipse.ini

Search for -Xmx512m or maybe more size it is.

Just change it to a required size such as I changed it to -Xmx1024m

edited Feb 27 '20 at 07:09

Narendranath Reddy

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answered Feb 27 '20 at 06:45

Ravi Pandey

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How to increase application heap size in Eclipse?

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