[jbosstools-issues] [JBoss JIRA] Commented: (JBDS-89) Support 64-Bit JVMs on Linux

[Sanne Grinovero (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBDS-89?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12437663#action_12437663 ] 

Sanne Grinovero commented on JBDS-89:
-------------------------------------

I'm using these:
-Xms512m -Xmx1024m -XX:MaxPermSize=300m -XX:PermSize=128M -Xss512k
I don't remember what was the default, so maybe I changed just the MaxPermSize.

IMHO I'm needing more PermGen because of the 64bit arch needs more ram to do the same;
worst case is double of the ram usedin 32 environments, but it depends on the code begin generated.

Collegues working on the same project in 32 bit environments don't need to tune these settings.

For JBoss VM settings usually is 256 enough for MaxPermSize, but when working with Seam we hit the 256 limit fairly fast (2-3 hours of development),
so my guess is that in 32 bit envs the limit is "far enough" for a full development day, but a bit too near in 64bit envs.

All this is info is relevant to linux only.. no idea how it behaves on other platforms.

thanks for your interest! great tool.

> Support 64-Bit JVMs on Linux
> ----------------------------
>
>                 Key: JBDS-89
>                 URL: https://jira.jboss.org/jira/browse/JBDS-89
>             Project: Developer Studio
>          Issue Type: Bug
>          Components: installer
>    Affects Versions: 1.0.0.GA
>         Environment: Linux x86_64, any jdk
>            Reporter: Holger Pirk
>            Priority: Blocker
>             Fix For: 2.0.0.cr1
>
>   Original Estimate: 30 minutes
>  Remaining Estimate: 30 minutes
>
> When picking the JVM, the installer shows a "The chosen directory does not contain a Java VM"-message, when picking a 64-bit jdk.
> It checks for "selected-path/lib/i386/client/libjvm.so" to verify the path but it is "selected-path/lib/amd64/server/libjvm.so" for a 64-bit jdk.

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