After upgrading to RubyMine EAP 7.1 build 141.96, RubyMine is pegging my CPU at around 200% (+/- 50) nonstop, making the IDE unusable. It takes a few seconds for a single keystroke to resolve.
A coworker just upgraded at the same time and he's seeing the same problem.
Giving RubyMine more memory seems to have worked around the problem for us. Our steps to do that (console commands):
1. cp /Applications/RubyMine\ EAP.app/Contents/bin/rubymine.vmoptions ~/Library/Preferences/RubyMine70/.
2. vi ~/Library/Preferences/RubyMine70/rubymine.vmoptions
3. Change -Xxs (initial memory) to 512 and -Xmx (maximum) to 1024
Looks like the new version can no longer live inside the 512MB maximum that it gives itself?