IdealGraphVisualizer file compatibility

[Christian Thalinger]

You want:  -XX:PrintIdealGraphLevel=1 -XX:PrintIdealGraphFile=output.xml

The README of the visualizer also helps:

http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/file/tip/src/share/tools/IdealGraphVisualizer/README

-- Christian

On Aug 3, 2011, at 4:17 PM, Joe Kearney wrote:

> Hi,
> 
> I've been trying to play with igv from
> http://ssw.jku.at/General/Staff/TW/igv.html,
> http://ssw.jku.at/General/Staff/PH/ but I don't know how to generate
> the required log files. What sort of files should I expect the igv to
> be able to read? The example files are graphDocument XMLs. I was
> hoping to be able to generate a file with something like the
> following:
> 
> -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation -XX:LogFile=output.xml
> 
> Needless to say, these hotspot_log files are totally different and the
> igv barfs with the below.
> 
> java.lang.NullPointerException
> 	at com.sun.hotspot.igv.data.GraphDocument.addGraphDocument(GraphDocument.java:70)
> 	at com.sun.hotspot.igv.coordinator.actions.ImportAction$3.run(ImportAction.java:128)
> 	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
> [catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)
> 
> 
> How do I get the jvm to generate the right output file?
> 
> Many thanks,
> Joe