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how to increase memory for the jvm through jniport?

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Tudor Girba-2

how to increase memory for the jvm through jniport?

Hi,

When using JNIPort I am getting a "java.lang.OutOfMemory: Java heap space". To go around this, I would need to provide more memory to the JVM.

Essentially, I would like to provide the correspondent of a command line like:

java -Xmx4000m

How should I do this?

Cheers,

Doru

www.tudorgirba.com

"Every thing has its own flow"

Tudor Girba-2

Re: how to increase memory for the jvm through jniport?

Hi Joachim,

Do you happen to know how to set the Xmx for the JVM through JNIPort?

I have this one right now, but I am not sure it's correct:

jvmSettings := JVMSettings new.

...

jvmSettings runtimeSettings addOption: 'Xmx4000m'.

^ JVM newWithSettings: jvmSettings

Cheers,

Tudor

On Fri, Aug 7, 2015 at 8:29 AM, Tudor Girba <[hidden email]> wrote:

Hi,

When using JNIPort I am getting a "java.lang.OutOfMemory: Java heap space". To go around this, I would need to provide more memory to the JVM.

Essentially, I would like to provide the correspondent of a command line like:
java -Xmx4000m

How should I do this?

Cheers,
Doru

--
www.tudorgirba.com

"Every thing has its own flow"

www.tudorgirba.com

"Every thing has its own flow"

Joachim Geidel

Re: how to increase memory for the jvm through jniport?

Hi Tudor,

it should be
jvmSettings runtimeSettings addOption: '-Xmx4000m'.
The options are added with exactly the same string which is used in command lines.

You can check the value of an option by using java.lang.System.getProperty() if it is a "-Dname=value" option. For -X options, it is not as simple as that, see e.g.
https://technology.amis.nl/2008/12/03/accessing-jvm-arguments-from-java-to-determine-if-jvm-is-running-in-debug-mode/

HTH
Joachim

Tudor Girba-2 wrote

Hi Joachim,

Do you happen to know how to set the Xmx for the JVM through JNIPort?

I have this one right now, but I am not sure it's correct:

jvmSettings := JVMSettings new.
...
jvmSettings runtimeSettings addOption: 'Xmx4000m'.
^ JVM newWithSettings: jvmSettings

Cheers,
Tudor