Swing is rather slow, though it's *much* better in JDK v1.4/1.5 than it
used it be.
My gut feeling is that with v1.5, the problem is not performance anymore
but (lack of) programming skills - for most programmers, it's still too
difficult to program a fast and good-looking GUI in Swing.
BTW, to get native-like performance you can always use SWT (see
www.eclipse.org).
Cheers,
--
Sharon Dagan
Senior Software Architect, Software Group, IBM Israel
Tel/Fax: +972-3-9188776, Mobile: +972-52-2554776
e-Mail: [EMAIL PROTECTED]
Making Linux user friendly is easier than debugging Windows :-)
guy keren
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Sent by: voguemaster
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17/03/2005 02:37 Subject
Re: Math optimization in... Java?
On Wed, 16 Mar 2005, voguemaster wrote:
> > Just my $0.02: IBM's implementation of the JVM is *not* optimized for
> > Itanium (and probably won't be). It is optimized, however, for other
64bit
> > processors such as AMD64 and Power4/5.
> >
>
> That's a different kind of optimization. In any case, if you write your
> code properly and you run your program in the correctenvironment, Java
> math speed is comparable to native code. To all those people who believe
> that Java is a performance hogging monster, let me burst your bubble
> right here and now.
unfortunately, java indeed is a performance hog in various areas - and
just by saying "it is not", you're not going to burst anyone's bubble ;)
it _can_ be very close to the speed of C or C++ in various aspects, but in
other aspects it is much slower. i've seen a very simple algorithm that
just by translating its inner loops to C and using jni, got a performance
increase of X3 - and i think this all came due to java's arrays bounds
checking.
i won't even mention java GUI programs. it could be that you can write a
GUI program in java that'll not appear slagish (i've seen some
minimalistic java applets that run quite fast) - but looking at the
various GUI programs i have met so far, it looks like it is much harder to
achieve this with java, then with C++ (or C).
sorry - you did not burst "my bubble" just yet :P~~
--
guy
"For world domination - press 1,
or dial 0, and please hold, for the creator." -- nob o. dy
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