I see there is a new "Power Save Mode" for Mr. Inspector. Not sure what that does, but that reminds me --- where is my "Pause on edit only" button aka IDEA-14683 ?
IDEA pauses the syntax/inspections parse on key presses when the file is not even being modified. Clicking on the editor pane with your mouse also pauses the syntax/inspection parse. (However, just moving your mouse over the editor panel (no clicking) does not pause the parse.)
When I am browsing files, e.g. stepping through the usages in a file, or just studying some code, what happens is the syntax/inspections parse is getting paused if I press any key. After the auto-reparse delay, it will restart the syntax/inspections parse, but if you type another key, it pauses again. Note that I am not editing the file(s), just navigating it with the keyboard, my cpu is at ~ 0% on 8 cores (4 cores X2 with Intel HT turned on). I have to stop pressing a key if I want the syntax/inspection parse to complete.
The desired behavior is that if a file is not being modified, then the syntax/inspection parse should continue for the file in the Editor pane using n cores - 1.
IDEA-14683 Optimize Editor Syntax/Inspection parse for multi-cores, limit autoreparse delay to only 1 out of n cores.