On 6/6/06, Ben Scott [EMAIL PROTECTED] wrote:
I'm mildly curious about things like GCJ (http://gcc.gnu.org/java/),which aim to compile Java-the-language to machine code for the hostplatform (e.g., i386), rather than compiling to machine code for
Java-the-machine.In particular, I'm wondering what
First, I agree that the laptop mentioned above is probably
underpowered for modern Java development. I'm fairly happy running
Eclipse and other Java-based apps on my systems that are = 512MB /
1GHz, but haven't done much on anything smaller for a few years. For
that machine if the user is only
On 6/6/06, Lawrence Tilly [EMAIL PROTECTED] wrote:
http://wiki.java.net/bin/view/Games/JeffOnPerformance
There seem to be an awful lot of exceptions and conditions in there.
For example, the author states you should have a modern JIT
compiler (whatever modern means), and ignore all the time
I've always wondered:
could you build a distro of linux that has native java support? when
you think about how java works, it compiles programs to byte code, which
is then executed on each platform by a virtual machine. what if someone
created a linux kernel that could directly interpret
could you build a distro of linux that has native java support?
While it'd certainly take some serious work, I can't think of any technical
reason why you couldn't -- and that would probably put the speed issue to bed
once and for all.
And of course, that possibility was likely one of
On 6/6/06, Christopher Chisholm [EMAIL PROTECTED] wrote:
when you think about how java works, it compiles programs to byte code, which
is then executed on each platform by a virtual machine.
Correct.
what if someone created a linux kernel that could directly interpret
and execute this byte
Ben Scott [EMAIL PROTECTED] writes:
On 6/4/06, Tech Writer [EMAIL PROTECTED] wrote:
... 150 MHz Pentium ... 40MB RAM ... Some of my son's friends
have decided to learn Java this summer ...
Be warned that Java may be unbearably slow on that system. (Given
that it's irritatingly slow on
On 6/5/06, Paul Lussier [EMAIL PROTECTED] wrote:
Be warned that Java may be unbearably slow on that system. (Given
that it's irritatingly slow on much newer systems.)
By what measurement do you determine that Java is slow ...
My measurement is qualitative, not quantitative. Everything
, June 04, 2006 9:57 PM
Subject: Re: Linux on old laptop in two stages
Ubuntu is a great desktop Linux distro, but I'd suspect it's not going
to perform nicely on an older laptop like that. There's a new
Xubuntu derivative that is using Xfce windowing for older hardware,
will supposedly give you
:57 PM
Subject: Re: Linux on old laptop in two stages
Ubuntu is a great desktop Linux distro, but I'd suspect it's not going
to perform nicely on an older laptop like that. There's a new
Xubuntu derivative that is using Xfce windowing for older hardware,
will supposedly give you the best of both
On Monday 05 June 2006 08:35 am, Paul Lussier wrote:
By what measurement do you determine that Java is slow, and compared
to what? Is it slower for developement, or just running it? Is it
slow compared to C, or Lisp, or Visual Basic? Are you doing systems
programming with it or distributed
On 6/4/06, Tech Writer [EMAIL PROTECTED] wrote:
I've got an old Gateway Solo 2100 laptop with 150 MHz
Pentium processor, 40MB RAM and 1.34 GB hard vdrive. It's been sitting in the corner
collecting dust, and still contains Windows-98. Some of my son's friends have decided to
learn Java
Context is unnecessary if, for example, Java is unbearably slow
compared to nearly everything. The only things I've seen that are
slower than (aggregate of all Java apps I've seen and used) are e.g.
field simulators or modal analysis simulation tools... and since
they're doing a lot of hardcore
A lot of the claims to the effect of Java is much faster nowadays
are based on the fact that typical Java implementations nowadays
include much better JIT (Just In Time) compilers. Translating an
application's interpreted Java bytecode into native machine code can
yield some very large
On 6/5/06, Kevin D. Clark [EMAIL PROTECTED] wrote:
It is also very possible that JVM's that run on Windows are more
efficient than those that you typically see under Linux ...
My personal experience is that the Sun Java VM is just as slow under
Windows as it is under Linux, so I don't think
Ben Scott wrote:
My measurement is qualitative, not quantitative. Everything that
uses Java that I've ever encountered on any machine takes a long time
to start and uses up gobs and gobs of memory, regardless of how
trivial the program. Interactive programs all have a somewhat
On 6/5/06, Richard Soule [EMAIL PROTECTED] wrote:
I've got a 1.6GHz Pentium laptop with 2GB of ram and I'm able to run the
below in quite a usable manner:
Keep in mind the context of the original post was a 100 MHz laptop
with 40 MB of RAM. Your video subsystem prolly has more RAM then that
Yes, Java's recent speed comes from (a) JIT compilation (b) real
static native compilation with optimization (e.g., JRocket) (c)
running on really hot hardware.
(And I do mean hot ... the 3.7GHz chips have more Watts per square
inch than a hot plate! There's a reason you won't see commercial
I've got an old Gateway Solo 2100 laptop with 150 MHz
Pentium processor, 40MB RAM and 1.34 GB hard vdrive. It's been sitting in the corner
collecting dust, and still contains Windows-98. Some of my son's friends have decided to
learn Java this summer, so I was hoping I could install a
On 6/4/06, Tech Writer [EMAIL PROTECTED] wrote:
... 150 MHz Pentium ... 40MB RAM ... Some of my son's friends
have decided to learn Java this summer ...
Be warned that Java may be unbearably slow on that system. (Given
that it's irritatingly slow on much newer systems.)
This system can
Ubuntu is a great desktop Linux distro, but I'd suspect it's not going
to perform nicely on an older laptop like that. There's a new
Xubuntu derivative that is using Xfce windowing for older hardware,
will supposedly give you the best of both worlds -- light weight
distro with the Ubuntu elan
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