use 4GB Heap on Platform Workspace

[jukzi]

After few days of doing much work in platform workspace across several repositories i use to end up in OOME.
I never could find a single point of failure, memory is allocated by jdt, platform, jgit, pde, classloader ... it seems like it just sums up

If anybody wants that heapdump just tell me

[jukzi]

[HannesWell]

I would even go for 4g are nowadays.

In general specifing the xmx/s in the project setup can cause trouble if one has multiple OOMPH project-streams in the workspace setup.
In such cases the ini is often just changed back and forth.

[merks]

4g seems good. The task should be merged. I’ve not seen it get changed repeatedly. That would be annoying.

[HannesWell]

The task should be merged. I’ve not seen it get changed repeatedly. That would be annoying.

Indeed. Sorry for the confusion.
But IIRC one cannot control which value is used.
E.g. one setup specifies 2g and one 4g, then 4g does not always win (which at least I would consider the right thing because these values are often the lower bound of the upper limit).
If I'm not mistaken again the last value applied wins.

[merks]

Yes, last one wins. One would need to add special support for that particular key to interpret the value and choose the largest value while merging. I think it's specified like this:

For options that take a parameter, add a suffix to the size value: "k" or "K" to indicate kilobytes, "m" or "M" to indicate megabytes, "g" or "G" to indicate gigabytes, or "t" or "T" to indicate terabytes.

So the point here is, which one of these would win?

[merks]

I do believe the configuration will win. But note that the Configuration is used once initially in the installer and it's parts are copied into Navigate -> Open Setup -> Installation and Navigate -> Open Setup -> Workspace where they can only be changed in the future by editing those files.

[jukzi]

@merks
the platform workspace setup wants to change my XMX

how to update that value? I have not followed it exactly, but my impression is that it randomly changes between 2,3 and 4 GB

[merks]

You can try Navigate -> Open Setup -> Workspace and copy-and-paste this

<?xml version="1.0" encoding="UTF-8"?>
<setup:EclipseIniTask
    xmi:version="2.0"
    xmlns:xmi="http://www.omg.org/XMI"
    xmlns:setup="http://www.eclipse.org/oomph/setup/1.0"
    option="-Xmx"
    value="8000m"
    vm="true"/>

That should override all other definitions of that task for that workspace. Of course pick the value/size you want....

It would be better if that task had smarts for at least some of the special/known properties to pick the highest value when merging...

[jukzi]

You can try Navigate

can't we just update all conflicting setting to 4G in the repositorie(s)- wherever they are hidden?

[merks]

Yes, these can all be changed:

[HannesWell]

Yes, these can all be changed:

Instead of adjusting all project specific setups, wouldn't it be simpler to just define it once in a parent?

[merks]

Which common parent? The catalog of all Eclipse projects? 😱