Performance Issues with Large Documents

While editing large documents in Oxygen XML Developer plugin, if you see that performance slows down considerably over time, then a possible cause is that the application needs more memory to run properly. You can increase the maximum amount of memory available to Oxygen XML Developer plugin by setting the -vmargs and -Xmx parameters in the command used to launch the Eclipse platform.

Attention: The maximum amount of memory should not be equal to the physical amount of memory available on the machine because in that case the operating system and other applications will have no memory available.