Where did add those JVM parameters? In version 4 it's not in the sqldeveloper.conf - it's in product.conf in the user application data, roaming, sqldeveloper/188.8.131.52 directory - assuming you're on Windows.
I modified product.conf of sql datamodeler product located in C:\Users\mmartinn\AppData\Roaming\Oracle SQL Developer Data Modeler\184.108.40.2063. Wrong file ?
I need o precise that the main issue is during fusion the old schema in DM with the new tables gotten from the database. Import runs slowly but it runs for 5 tables. Database server is Exadata.
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If you're running SQL Developer Data Modeler - that's the right file.
I was assuming you were using SQL Developer since that's this forum.
You could bump your Xmx up even higher. Although 400 tables isn't THAT big. For very large models we run at 3 and even 4 GB.
What does that have to do with loading tables in the modeler?
Finally i succeed : Xms1024m and XMx8192m. It runs 1/4h at 80%CPU and RAM up to 11GB
Thank you for your help
It sounds like these are pretty big tables, as in many many columns, plus synonyms, views, etc.