Description Ben Spink 2012-08-15 04:04:28 EDT

(I posted this on the .35 and realized it probably belongs here instead as this is the current build.)

Prior bugs for the same issue have been closed off as having been fixed, but this bug is definitely not fixed.

Downloaded latest Eclispe 4.2 from website today, scrolling was so bad I promptly put it into the trash and went back to my Carbon eclipse.

I have 140 lines visible on my 30" rotated 1600x2560 monitor.

Carbon: 422 line Java file.  16 seconds to scroll.  140 lines visible.
Carbon: 422 line Java file.  18 seconds to scroll.  160 lines visible.
XCode:  422 line Java file.  17 seconds to scroll.  160 lines visible.

Cocoa:  422 line Java file.  47 seconds to scroll.  140 lines visible.
Cocoa:  422 line Java file.  51 seconds to scroll.  160 lines visible.
Cocoa:  422 line Java file.  34 seconds to scroll.  20 lines visible.

Those numbers don't fully quantify it.  When using it with a mouse wheel to scroll quickly in a document looking for something specific...you can't.  The refresh rate is so slow that you just get random chunks displaying as you scroll with no fluid motion at all.  My mouse wheel movements can be seconds ahead fo the screen refreshes where I just sit and wait for it to catch up.  Its just not usable under any circumstance.  So if you are sitting there on your 13" laptop with 40 lines visible in your editor...well, you may not notice this as much.  (I would still.)  But if you are trying to really code and need speed, its just impossible to use Cocoa Eclipse.

iMac 3.2Ghz Quad i7 OSX 10.8 (issue existed on 10.6, and 10.7)
Eclipse 4.2 I20120608-1400