IdealGraphVisualizer file compatibility

[Joe Kearney]

Ah, thanks for the readme link.

I can't get hotspot 1.6.0_25 or 1.7.0 to recognise the
PrintIdealGraphLevel/PrintIdealGraphFile options. I tried with
UnlockDiagnosticVMOptions etc as well. to no avail. Is there something
else needed to expose this?

Joe

On 3 August 2011 15:51, Christian Thalinger
<christian.thalinger at oracle.com> wrote:
> 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
>
>