java2d performance java7 / java8

[DRC]

I am wondering if this is the same issue I'm experiencing:

http://mail.openjdk.java.net/pipermail/macosx-port-dev/2014-August/006700.html

If so, it's because Java 7 and later are defaulting to OpenGL drawing on 
Macs, which is slow, and there appears to be no way to change this 
behavior.  Java 6 uses some other form of drawing.  This can be revealed 
by adding -Dsun.java2d.trace=count to the java command line and noting 
the differences in the output between Java 6 and Java 7/8.


On 8/18/14 9:05 AM, Florian Bruckner (3kraft) wrote:
> Hi Sergey,
>
> I have built a minimalistic test case that exposes the problem. It
> creates a JFrame with an editor pane in it to show some HTML content (a
> javadoc page). The test is to just scroll from the bottom to the top and
> back to the bottom by mouse wheel as quickly as possible, I did 5
> iterations in each test run.
>
> Wall clock timing was approx. 15 seconds with Java 6 and approx 45
> seconds with java 8. As the problem worsens with increased screen
> resolutions I decided to use the full resolution of my new UHD display
> (which is 3840x2160), the machine is a
>
> MacBook Pro
> 15-inch, Early 2011
> Processor  2 GHz Intel Core i7
> Memory  16 GB 1333 MHz DDR3
> Graphics  AMD Radeon HD 6490M 256 MB
> Software  OS X 10.9.4 (13E28)
>
> These are the java versions:
>
> $ java -version
> java version "1.8.0_11"
> Java(TM) SE Runtime Environment (build 1.8.0_11-b12)
> Java HotSpot(TM) 64-Bit Server VM (build 25.11-b03, mixed mode)
>
> $ /System/Library/Frameworks/JavaVM.framework/Home/bin/java -version
> java version "1.6.0_65"
> Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
> Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)
>
> With java 6, the application felt agile and responding, whereas with
> java 8 it was barely usable.
>
> Attachments were rejected from the list, therefore I have uploaded them
> to our web storage (this link expires Aug 31st):
>
> https://owncloud.3kraft.com/public.php?service=files&t=ae0f609d6bd42b27a5ea38261507a38c
>
>
> Please let me know if those results are usable for you.
>
> regards,
>
> Florian