Preferences Virtual Machine Memory

Figure 1. Virtual Machine Memory page

Current maximum size as reported by JVM - the text field contains R/O value which shows actual max memory available to currently running Java VM.
New maximum size (will take effect after restart) - the text field, where the user enters his amount of max memory.
Maximum memory setting is not applied automatically to current Java VM. Even restarting IDA-STEP (like it happens after downloading new features) does not change maximum memory. User has to close IDA-STEP and start it anew from OS shortcut. The Save preference message window appears after a new value is entered into the field and confirm by the OK or Apply buttons (see Figure 2)

Figure 2. Save Preferences message window.

More to this, in shared environments ida-step.ini file is read only and IDA-STEP will not have enough permissions to modify this. If this is the case then IDA-STEP displays the dialog which explains what needs to be changed manually by the user (see Figure 3):

Search for the ida-step.ini file in the file system.
Copy the content of the text field in the dialog window.
Paste the content into the ida-step.ini file.
Click OK button in the Save Preferences dialog window.

Figure 3. Save Preferences dialog window

The Current maximum size as reported by JVM is to help user identify if his attempts to increase max memory have really succeeded. The current maximum size, reported by JVM, is typically something less than the originally entered value.