Thomas,
I ran the tests you had mentioned on a Mac OSX 10.4.2 G5 2.5 GHz Dual
Processor, 4 GB SDRAM DDR.
Here are the results (for my SVG document in seconds):

Mac:
Linear_sRGB_Pre :12
Linear_sRGB_Unpre : 37
sRGB_Pre :12
sRGB_Unpre: 37
sRGB : Throws some exception.
Linear_sRGB: Throws exception

Java : 1.4.2_07
Batik: SVN Nightly build dated 05-07-13

Thanks,
Javid

A clever person solves a problem.
A wise person avoids it.

-- Einstein


-----Original Message-----
From: Thomas DeWeese [mailto:[EMAIL PROTECTED]
Sent: Friday, July 15, 2005 5:18 AM
To: [email protected]
Subject: Re: Applet way too slow on MAC


Hi all,

    Could someone who has 10.4 rerun Steven's tests?

http://koala.ilog.fr/batik/mlists/batik-users/archives/msg06976.html

The class in question is org.apache.batik.gvt.filter.GraphicsNodeRed8Bit

    and report back results?  I still only have access to
Mac OS 10.3.  Also I noticed the following on a message board that
people might try (although I'm unsure how one would use them in
an applet):

From: http://lists.apple.com/archives/Java-dev/2005/Apr/msg00578.html

Note Quartz 2D Extreme is turned off by default in 10.4 (not just for
Java) however one can use Quartz Debug to enable it.

---
apple.awt.graphics.EnableQ2DX
Quartz 2D acceleration is a feature included in Mac OS X v.10.4 for
development purposes. It uses hardware acceleration to speed up
rendering of simple primitives like images, lines, rects, and simple
characters.
---
apple.awt.graphics.EnableDeferredUpdates
Mac OS X v.10.4 uses deferred drawing updates, which eliminates visual
tearing, but blocks those applications that flush too often.


Scott A. Ruffner wrote:

> i was writing to suggest that you try 10.3.9,
> and i just saw your last post!
>
> we've observed a substantial slowdown in rendering
> performance with our Batik-based Java application
> when running under 10.4.0 vs 10.3.9. (sorry, no
> stats to offer, but the slowdown was so bad that
> we decided to stick with 10.3.9 for now).  i'm no
> mac guru, but i understand that 10.4 includes some
> major changes to how OSX does graphics...
>
> is anyone else out there running 10.4.x and NOT
> seeing a performance degradation?
>
> sincerely,
>


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