Well guys, I couldn't resist so I went ahead and installed and am
totally happy w/ it. I'm on a first gen Intel MacBook Pro, and have
been sticking w/ 1.5.
First the bad.. Swing graphics are definitely slower, I'd say 2x at
least for drawing to 2D canvases. (But as soon as I minimize my
graphics speeds return to expected.)
OTOH, compute tasks such as builds, model runs, etc.. are actually a
bit faster. (Sorry I didn't really quantify, but for instance ~5 sec
v. ~7 before.) In general Leopard is quite a bit snappier, say for
app startup and switch. Safari kicks. Eclipse and SWT actually feel a
bit snappier, to be expected as Eclipse has its own abstraction layer.
As Sean implies, Java + Graphics have never exactly been a strong suit
for Apple. OTOH, I've found the vm to be pretty darn good for
computation -- trounces XP and up there w/ Linux.
Now for the weird part -- I didn't see any slow down w/ J3D stuff, but
big caveat there is that these were for simple models (~100 agents, <6
shapes per) that didn't run that great to begin w/. Big caveat is I
know completely nothing about 3d graphics, and rely on visualization
very little for my work, and so for the many of you on this list that
do you prob. will want to wait for more data. But if you're doing
mostly coding, running models, and fairly light graphics I'd say go
On Oct 30, 2007, at 10:22 PM, Miles T. Parker wrote:
> Argh..I just ordered it! Couldn't find a whole lot about this issue
> online, except that 1.6 isn't included, which doesn't surprise me at
> all. I'm wondering if this mainly impacts visualization or if it is
> GUI in general (I don't care so much about 1.6 improvements to Swing
> as I'm spending much of my time in Eclipse these days..) Or..eh..if
> it is Java performance altogether, that would really suck. I think
> I'll install it on my wife's MacBook first..
> On Oct 30, 2007, at 9:56 PM, Sean Luke wrote:
>> You've probably heard: OS X 10.5 (Leopard) runs Java exceptionally
>> slowly if at all. This is because they've turned off OpenGL
>> hardware acceleration (or what little of it they had in 10.4).
>> I've been told that a number of Java simulation environments, such
>> as Processing, are having difficulty. I have not tested MASON
>> under Leopard and cannot verify that it will run well or not. But
>> given Leopard's serious Java problems, you may wish delaying any
>> upgrade until a later version (10.5.1, perhaps).