java memory options not working.

[willie68]

Due to some testing of issue #2233 i try to set some other memory parameters for the java vm. (-Xms and -Xmx...)
As i can see in the preference.txt file, it's possible to set an option part as i can set initial and max memory for the vm.

run.options=-Xms256m -Xmx1024m
run.options.memory=false
run.options.memory.initial=256
run.options.memory.maximum=256

There are 2 preferences.txrt files. One in the arduino install directory (which seem's to be the default one) and one in /AppData/Roaming/Arduino15/. But both will not work in any case. I have tried many different options, run.options.memory=false or run.options.memory=true
run.options= or run.options=-Xms256m -Xmx1024m but nothing changes the default behavier with -Xms128m and -Xmx128m...

[willie68]

Just found out, that launch4j can be configured with a l4j.ini file. Must be in the same directory as the executable. Here you can define parameters.
But in the launch4j file (config.xml) the are the entries
<opt>-Xms128m -Xmx128m</opt>
And launch4j then add both, so you get a commandline with both options. Is it possible to delete the tag in the config.xml file and add an arduino.l4j.ini file with the default values for more flexibility?

arduino.l4j.ini
-Xms128m
-Xmx128m

see http://launch4j.sourceforge.net/docs.html#Additional_jvm_options

[WhiteElf]

Still having the same issue with 1.6.0.

Windows 7 64bit 16gb RAM.

Can't use any of the Open/Sketchbook/Examples options. Always get:
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space

Executing this from the command line instead of running the loader solves the issue:
"D:\Utilities\Arduino\java\bin\javaw.exe" -Xms1024m -Xmx1024m -classpath "lib;lib\arduino-core.jar;lib\pde.jar;lib\jna.jar;lib\ecj.jar;lib\jssc-2.8.0.jar;lib\commons-codec-1.7.jar;lib\commons-exec-1.1.jar;lib\commons-httpclient-3.1.jar;lib\commons-logging-1.0.4.jar;lib\jmdns-3.4.1.jar;lib\jsch-0.1.50.jar" processing.app.Base

[WhiteElf]

Arduino-PR-2712-BUILD-197 resolves the heap space issue when attempting to load Sketch. It doesn't read the memory setting in the preferences.txt file, however it does work with the arduino.l4j.ini file.