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I want to use SQLDeveloper with files that are fairly large. However, performance is sluggish (at best) due to a lack of memory.

Assuming that it is a Java app, how can I increase the size of memory allocated to the VM?

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This post has useful details on where to tweak the JVM settings.

Essentially, look for ~/sqldeveloper/bin/sqldeveloper.conf and in that, look for:

AddVMOption -XX:MaxPermSize=128M

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