RubyMine Low Memory / Increase Heap Size
Quick answer
Raise the heap via Help | Change Memory Settings and restart.
Most likely fix: Change memory settings
How to fix it
Try these in order — the most common fix is first.
1. Change memory settings
- Help | Change Memory Settings
- Set memory, Save and Restart
Did this fix it?2. Toolbox App
- Settings icon | Settings | Configuration | Maximum heap size
- Restart the instance
Did this fix it?3. Manual
- Copy the default JVM options file and change -Xmx; right-click status bar | Memory Indicator to monitor
Did this fix it?
Symptoms
IDE lags or warns about memory.
Why it happens
- Default -Xmx too low for a large Rails app
This guide also covers
- rubymine low memory
- rubymine increase heap
- rubymine slow
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