Please create an account to participate in the Slashdot moderation system


Forgot your password?
OS X Businesses Operating Systems Programming Apple IT Technology

PowerBook Performance for Java Development? 255

brasten wants to get to the core of this issue: "I'm in the market for a new development notebook. I would like to jump into the Apple world and pick up a PowerBook. However, compiling very large Java applications of course takes some time, and so raw processing speed is a factor. I have been unable to find solid data on how fast a 1.33GHz PowerBook runs against the modern x86-based notebooks. Does anybody have any information that could help me compare?"
This discussion has been archived. No new comments can be posted.

PowerBook Performance for Java Development?

Comments Filter:
  • tests (Score:5, Informative)

    by Tirel ( 692085 ) on Thursday February 05, 2004 @05:47AM (#8187448)
    we did some tests on this two years ago and the 1ghz ppc came up on top, about 30% behind the fastest x86. this is probably because the ppc has a larger l1 cache and a better fpu (java uses exclusively floats, even when you declare type integer).

    However that was 2 years ago and these days a x86 machine is probably faster (and cheaper if this is a concern.)
    • Re:tests (Score:5, Informative)

      by Anonymous Coward on Thursday February 05, 2004 @07:54AM (#8187974)
      java uses exclusively floats, even when you declare type integer

      Eh? What's with all them iadd, isub, iXXX bytecodes, then?

      No, Java has different bytecodes for floats, doubles, integers and longs. How the JVM actually handles those bytecodes is, of course, a matter of implementation (as long as it conforms to the spec).

      However, all JVMs I've seen so far handle ints and floats differently. Using floats exclusively, as you claim, would be silly.
    • However that was 2 years ago and these days...

      ...a G5 will probably score much better.

      • Re: tests (Score:2, Insightful)

        by darkgreen ( 599556 )
        and since the original question was regarding a laptop, the G5 can't really enter into it, seeing as how it's not yet in use in the powerbooks.
        • Re: tests (Score:3, Insightful)

          by Anonymous Coward
          Nor can the fastest x86 chips, as the heat issues are presenting a formidible speed barrier with both Intel and AMD chips on laptops. The new "Centrino" mobile CPU from Intel probably does not shine all that brightly when compared to a G4, but I would want to see test scores before making that call.
  • go for it.. (Score:2, Informative)

    by CoolCat ( 594452 )
    1.4.x upgrade gave quite a performance boost... I code som medium size java projects wich compiles at acceptable speed. Btw I have the older 1ghz model with slower memory and slower processor.
  • My Impressions.. (Score:5, Informative)

    by rastachops ( 543268 ) on Thursday February 05, 2004 @05:48AM (#8187456)
    I would say that they aren't exactly speedy in compiling Java apps. I have noticed that even with small programs they can be compiled quicker on x86. I can't comment on the top of the range models but my 867Mhz G4 12" Powerbook does noticably take longer.

    In saying this, I *much* prefer developing on Mac OS X compared to Windows. The document centric layout and general usability of OS X makes the whole process a lot more enjoyable.

    At the end of the day I'd go into an Apple store and ask to test one out. Try it with some big project and judge for yourself.
    • Re: My Impressions.. (Score:5, Informative)

      by Komarosu ( 538875 ) <> on Thursday February 05, 2004 @06:43AM (#8187716) Homepage
      While i dont do much Java development but sometimes i help my friends with some debugging work for Uni. I personally like the way Java works on OSX compared to Windows, on Windows it seems more of a extra but on OSX it seems inbuilt.

      The general workflow of OSX is much better, for the bigger projects i think Xcode (note, I THINK) can handle java apps.

      So yes i agree with the parent, take some Java code to a Apple Store / Reseller and ask em nicely if you can test it.
      • I totally agree with the above poster as regards the VM implementation on OS X. It uses the native widgets and makes apps look & feel more native than the standard Java VM on Windows. Definately a big plus towards using a Mac ^_^
      • Re: My Impressions.. (Score:5, Informative)

        by Lizard_King ( 149713 ) on Thursday February 05, 2004 @10:15AM (#8188716) Journal
        XCode can handle Java apps, but a lot of the sexy new features, like command completion (called Code Sense (tm)), aren't supported. I ended up bagging XCode and going back to Eclipse 2.1.2 []. Eclipse, which used to be a huge pain in the ass to get working on OS X is a quick install and doesn't run as slow as in days past. I haven't compiled any huge Java apps, so my opinion is biased, but my apps compile in a reasonable amount of time.

        I have a TiBook, 667 MHz, 512MB RAM.

        • Re: My Impressions.. (Score:5, Interesting)

          by BitGeek ( 19506 ) on Thursday February 05, 2004 @07:57PM (#8196043) Homepage

          Its important to remember whether you're talking about compiling on the run, or doing so while plugged in.

          Any PC Laptop drops processors speed (And performance) dramatically when unplugged... but Apple laptops continue to operate at full speed when you're running off of battery.

          So, if oyu really need a laptop to do compilations while travelling, then you definately want to go powerbook.

          Also, the superiority of the Mac development environment cuts down on the need to compile as often (for objective-C at least, not sure about java-- you can make changes and incorporates them without recompiling and re-linking) so this is a big benefit.

          Sounds like you've never had a powerbook before- either borrow or rent one and try it out if you can. But if not, I think you'll find that the mac may not be significantly faster than the PC for java compilations, but in most other ways they are much faster.

          And I wouldn't be surprised to see them faster in java as well. When I Was last doing Java development I did it all on a 400MHz powerbook, and the rather large app compiled very quickly... never had to wait. You know, that nice pause while you think about what you're going to test-- and before it occurs to you to get up and get a soda or something, the compilation is already done.
          • Re: My Impressions.. (Score:5, Informative)

            by azav ( 469988 ) on Thursday February 05, 2004 @08:36PM (#8196484) Homepage Journal
            "... but Apple laptops continue to operate at full speed when you're running off of battery."

            Untrue. Check your Energy Saver control panel settings. You'll find that the default is to clock down when unplugged.

            • Re: My Impressions.. (Score:3, Informative)

              by BitGeek ( 19506 )

              Yes, you can clock down, but if the CPU needs the power, the setting clocks up.

              In other words, during the compilation period, the CPU runs at full power, and only steps down when its not fully needed.

              On an x86, you cannot run at full power without draining your battery considerably.... So, while you may be able to disable it, you lose a lot of battery life.

              On the mac, the few secods of compilation are not enough to shorten the batterylife.

              You just cannot get around the physics of a CISC architecture tha
              • Re: My Impressions.. (Score:3, Informative)

                by glk572 ( 599902 )
                The pentium M also does this, my 1.3ghz Thinkpad throttles from 275mhz, all the way up to full speed on the battery.

                I've used powerbooks and the centrino laptops side by side, and I'd have to say that for 3d rendering/modeling using blender, and for photoshop work that the centrino is somewhat faster.

                a brief artical about laptop preformance is available at,4149,1202685,00.a s p

                for me the choice was betwene a 15" powerbook and a thinkpad r40 and after doing some research an
          • I have never seen a PC laptop that does not allow you to turn off 'speedstep' technology and run at full speed while on batteries. You'll just get less battery life.

            Interesting attempt at making the powermac's inability to step down in speed while on batteries seem like a feature though. Bravo. ;-)
        • but a lot of the sexy new features, like command completion (called Code Sense (tm)), aren't supported.

          Pardon my ignorance if I'm incorrect, but isn't that the same thing as a Option-Esc in XCode? I've never used Eclipse, so I don't know of 'code sense', but if you simply want to auto complete a method name it's there in XCode. Other nice tricks in XCode are Command-double click on a method name to take you to that method or header, and Option-Double Click to take you to the docs. All of the above req

    • Re: My Impressions.. (Score:5, Informative)

      by LippyTheLip ( 582561 ) on Thursday February 05, 2004 @06:44AM (#8187722)
      In my experience, a G4 processor "feels" about as fast as a P3 or P4 with twice its clock speed. Floating point and integer benchmarks usually come out this way too. Integer benchmark running in Java (client) here []. Of course, the complie speed will also be affected by the compiler, but Apple's XCode and Project Builder have a pretty good reputation, I think.
    • by fr0dicus ( 641320 )

      I can't comment on the top of the range models but my 867Mhz G4 12" Powerbook does noticably take longer.

      Unfortunately the old 12" 867Mhz pb is significantly worse off than anything from the same range or has arrived since, because it doesn't have either the 1MB of L3 cache of its larger brethren or the 512k on-chip cache which its successor has. It's still very nice though. I love mine to bits, but I wouldn't use it without xcode and the other macs in my house for large compilation jobs.

    • If compilation speed is an issue and you're on a fast network, the distributed build feature in XCode could really help. I've used on my C++ apps and it effectively adds about 50% of the CPU speed of the shared machines to my performance.
    • In saying this, I *much* prefer developing on Mac OS X compared to Windows.

      You're making an assumption that because he said Intel, he means Windows. What if he runs Linux on it?

      I'm not sure that I notice much of a difference from a developers point of view between OSX and Linux. Having said that, you'll get my powerbook when you pry it from my cold, dead hands. The desktop is superior (in my opinion) and it's nice to be able to run Quicken, Warcraft, etc without having to have another computer.

      In my opi

      • Well, under Linux they will be using GCC, right? Maybe some other java compiler... but both systems are unix and from a OS standpoint, the compilation shold be based on memory, buss and processor speed.

        Though x86 laptops have to lower their CPU rate when on battery so that should negatively impact even a linux development machine (this is where RISC really is an advantage).

        But the bigger impact is going to be the development environment... it may be that eclipse is a dream to operate under Linux... but I
    • by hayne ( 545353 ) on Thursday February 05, 2004 @02:43PM (#8192079)
      Three points:
      1) You definitely need lots of RAM. Compilation speed is just fine on my lowly 600 Mhz G3 iBook (20 seconds to rebuild all 100 or so classes (10 K LOC) and create a JAR file) but my IDE (JBuilderX) typically takes up 120 MB of real RAM, 500 MB of virtual memory. I have a total of 384 MB RAM and so if I am using any other RAM-hungry apps, my machine is running the disk a lot (swapping).

      2) The latest release of JBuilder (JBuilder X) is much improved from previous versions. Lots of refactoring support. It is not yet officially available for OS X but I managed to get the trial version of JBuilder X Enterprise to install with the help of a note on the Borland community pages, and it runs fine. Details of how to get it running on OS X are here []

      3) Java GUI applications look so much better on OS X (Panther, Mac look & feel) compared to other platforms. This is an advantage because you will get an esthetic boost from looking at your app while developing, but it might be considered a disadvantage if (as is likely) the main target platform is Windows (where your beautiful GUI won't look nearly so nice).

  • by ChunderDownunder ( 709234 ) on Thursday February 05, 2004 @05:53AM (#8187475)
    First, intel's set to release Dothan, it's new Pentium-M for the centrino.

    Then there are rumours of new PPC chips from IBM
    (a) G5 PPC 970
    (b) G3+altivec PPC 750VX - just a rumour none of these chips seen in the wild.

    The bottom line, Powerbooks based on motorola G4s are soon to be phased out.
  • by bigredswitch ( 622835 ) on Thursday February 05, 2004 @06:02AM (#8187523)
    I know it's older hardware but I use a 400MHz G3 PB (Pismo) on a daily basis for developing Java and I have absolutely no problems with compilation speed - the first time the compiler is run (from Project Builder, CodeWarrior or the shell) takes a while but subsequent builds take no time at all. In CodeWarrior it *feels* no different to using my dual PIII 1GHz Win2k box. Running the apps is a different matter entirely - anything with a GUI takes forever to start up (but command line tools are pretty instant).
    • by KDan ( 90353 ) on Thursday February 05, 2004 @06:30AM (#8187651) Homepage
      Depending on the complexity of your project, you will occasionally, and maybe even quite often, need to do full rebuilds. The java compiler is not always clever enough to figure out which classes it needs to change, sometimes things just don't seem to work and a full rebuild fixes it.

      Also, if you change a class that's used by a lot of other classes (eg your Constants class?) it will have to recompile all those classes again. If you're trying to live off your programming, you want things to get done quickly, and you want to avoid sitting around for a few minutes waiting for the rebuild to complete. That makes compilation speed very important.

  • by Anonymous Coward on Thursday February 05, 2004 @06:08AM (#8187556)
    Once you Mac, you'll never go back.

    Neither my PowerBook G4 17", nor 12" offer break-neck speeds. My tests from mid last year concluded it can't out perform a generic PC laptop at the same price point. However it's a platform developed by smart developers for smart developers. Coming from either UN*X or Windoze, after a play, you're gonna oh-so-want one.

    PS... You'll want all the RAM you can afford.
  • Go for it (Score:5, Informative)

    by Sixtus ( 1318 ) <(moc.liamg) (ta) (sutxis)> on Thursday February 05, 2004 @06:09AM (#8187564)
    I work for a very large international company as a senior java developer. When I decided to take a sabbatical for master studies, I had to turn in my IBM A31p.

    Between semesters, I returned to work and since my employer was unwilling to buy a new machine for just 2 months (my laptop was reassigned, they offered me a P3 desktop for a roaming job), I brought in my personal PB17, which I bought for my studies. I already knew, that it's a fine Java development platform, but I was unsure about a large J2EE project in a Windows company.

    Integration went very smoothly (Of course it runs Exchange, yes Ms Office no prob) and even Bea WebLogic (assign the right jdk) and Together/J was a no-brainer.

    Eclipse is a tad slower, but after getting used to it (key assignments and such), I'm just as productive as on my old Windows Laptop.

    Summary: If you like Unix and need a laptop, there is no way around a PowerBook. Integration into the Windows world is easy. All the Java tools are available and run w/o problems at acceptable speed. Just make sure you have enough RAM, 1G is minimum for a Java-Pro.

    Enjoy, I don't think you ever want to go back. Powerbooks are addictive.
  • by vilbel ( 632150 ) on Thursday February 05, 2004 @06:16AM (#8187594)

    The G4 can't win the battle against modern x86 processors anymore.

    But on the other side, how often do you compile a whole project? While you develop, there are mostly only very few files changed. Compiling them then is only a matter of seconds. On every platform.

    The much more important question is, if Mac OS X and the applications can speed up your developing process? If you saved 10 seconds by faster editing the source files, you can spent 5 seconds for the longer compilation time and save 5 seconds for your personal recreation ;)

    • by ( 156602 ) * on Thursday February 05, 2004 @01:16PM (#8190909) Homepage Journal
      This is very true, speed matters when doing a complete rebuild, but I rarely do a complete rebuild on my TiBook 667MHz (w/1024M RAM). In fact, if I import the classes from my other faster workstation, I never have to do a complete rebuild.

      On the other hand I am just so amazed, after trying the relic 700MHz PIII laptop in the office, at how much faster my 667MHz PowerBook is (even with iTunes taking 10% of the CPU).

      Imagine how it will be 18 months from now.
  • My impressions... (Score:5, Informative)

    by DiscoOnTheSide ( 544139 ) <[ ] ['tge' in gap]> on Thursday February 05, 2004 @06:39AM (#8187690) Homepage
    This summer I was a coder for Rutgers University, doing various coding in Java and Perl. I can honestly say that between all the great editors and IDEs that the Mac has, along with OS X. It's a great development platform. I'd bring my 550Mhz G4 Powerbook in every day, hook it up to an additional monitor so I'd have coding on one screen and my iChat/API references on the large monitor, since I wasn't looking at that as much. Doing all the compiling and testing and everything, along with having iTunes blasting, and all the other sorts of stuff I would be running at the same time, it didn't skip a beat. I'm buying myself the top end 15 inch powerbook this week, as an upgrade, as my parents offered to buy my old one (after seeing how productive I was on it, as well as seeing the wonders of Wi-Fi they wanted it for themselves, and after almost three years of service, I could use a taste of some more speed. Not that my 550Mhz is SLOW by any means, but wanting to go faster isn't a crime :)
  • Speed vs. usability (Score:5, Informative)

    by hemanman ( 35302 ) on Thursday February 05, 2004 @06:41AM (#8187701)
    I've recently bought a 12" iBook G4 800MHz, and it preforms directly like a Pentium III 800MHz with recent Java versions, which I found out using a Java dhrystones benchmark program to test it. The iBook scores 97.8 where the PC scores 99.2.

    I've tested a lot of different platforms with that program, and it seems to follow SpecInt/Float benchmarks pretty well, if you look on how it compares to different systems, eg. a Sun SparcStation 5 scores around 4.9, making it 20 times slower than a Pentium III 800MHz PC, which also SpecInt/Float benches show.

    So the PB at 1.33GHz will run like a PIII 1.33GHz, and you'll have to make up with yourself if thats sufficient for you. A P4 2.6GHz with HT scores around 216.

    Also, if you decide to buy an iBook, be aware that it CAN'T run with an external monitor in any higher resolution than it's internal LCD, something my old Dell latitude from 1997 does with no problems at all :-(

    I don't know if that is true for the PB, but it sucks bigtime. I'm very disapointed with my iBook on that fact, along with some other assembly issues that other people with iBook G4 also seems to have.

    If you're going to spend most of your time in Eclipse, I'd save the extra bucks and go for a PC.

    • You can't extrapolate Powerbook performance direct from an iBook due to architectural differences such as the bus and the ability to have more RAM.
    • Powerbook vs iBook (Score:5, Informative)

      by rmlane ( 589573 ) on Thursday February 05, 2004 @07:48AM (#8187950)
      Powerbooks have twice th L2 cache of iBooks (512k vs 256k), which will improve performance by a few percent, perhaps more. In addition the RAM is PC2700 instead of PC2100, which will help as well, and they have faster graphics cards.

      P'books can happily display a very high resolution desktop on an external display, and will properly span the desktop over the two displays.

      If you're willing to do hairy firmware hacks, this feature can be added to an iBook as well, but I won't point you at references, as I'm disinclined to help you bust your iBook.

      Nice to see the final sentence though: I'd save the extra bucks and go for a PC. Yes, iBooks are cheaper than the equivalent PC laptop, and P'Books are generally the same or less than the PC equivalents.

      • That's simply not true. Dell offers a 15" widescreen (1400x1080 pixel or 1920x1200) display notebook with a Radeon 9600, 40GB HDD, 256M DDR, Pentium-M 1.4Ghz, and a DVD combo drive for around $1500. For under $2000 you can get a 2x DVD burner and the super high res screen, plus a Pentium-M 1.8Ghz, 80gb HDD, and 512M DDR.

        The comparable 15" PowerBook has a lower resolution screen and *starts* at $2000, with a slower CPU (1GHz, and Pentium-M has higher IPC in most cases compared to G4), less memory, no DVD bu
        • Gateway has a decent 17" notebook for $1400.

          And worth every penny. My brother had a Gateway laptop that quite literally fell apart on him. I don't know where it was assembled, but apparently they did away with all quality control. He is now the happy owner of a 12 inch Powerbook.

        • by NetJunkie ( 56134 ) <jason.nash@gmaiP ... minus physicist> on Thursday February 05, 2004 @05:07PM (#8194154)
          Get what you pay for. Goes double on notebooks. We deploy ThinkPads at my company. We don't buy cheap ones. We buy the T series usually. Option for option they are in line with my 15" PowerBook and the build quality on the PB is higher. It also has a MUCH nicer looking screen than any PC notebook.

          I've seen those "cheap" Dell and Gateway notebooks. Try really using it for a while. They fall apart. I'd never trust them to take the travel abuse my PB takes. They just don't handle it.
          • by RzUpAnmsCwrds ( 262647 ) on Thursday February 05, 2004 @08:07PM (#8196177)
            I have a four-year-old Dell CSX. It's absolutely fine. Some scratches on the case, but still fine. And trust me, it gets plenty of abuse. I have dropped it five feet onto concrete before (not in a case, but it was closed).

            I also have a 3 year old Omnibook. It's fine too.

            So don't tell me that they fall apart. They don't fall apart unless you abuse them. Get a good case.
        • I'm looking across my desk at my:
          - 1 year old Dell 1.8 GHz P4
          - 3 year old Apple Powerbook 400 Mhz G4
          (similar RAM on both)

          The G4 takes about twice as long to compile a large java project (5000 classes) as the Dell, which isn't bad for a 3 year old machine.

          On the other hand, the Dell's DVD drive is broken, the latch for the battery keeps coming loose, and the machine gets hot and runs fan while it's sleeping.

          The powerbook has intermittent problems with a clicking / scraping sound while watching DVDs. T
          • I have a Dell CSX that was made in 1999. It's absolutely fine, and still quite nippy.

            Windows 2000 and Linux both run fine. Battery life is OK, around 2 hours (not bad for a used battery).

            I got it on eBay for $350. Including a DVD/CD-RW combo drive, Windows 2000, 500mhz P3, 20GB HDD, 256M SDRAM, and a 13" XGA LCD.

            See how much iBook you get on eBay for that price.
    • by Anonymous Coward
      Also, if you decide to buy an iBook, be aware that it CAN'T run with an external monitor in any higher resolution than it's internal LCD
      The iBook G4 is easily modified to enable screen spanning and can run resolutions higher than the built in screen. Just look for a program called "Screen Spanning Doctor". It runs a script to update the ibooks firmware. It works perfectly.
      along with some other assembly issues that other people with iBook G4 also seems to have.
      No. If your talking about the logic board pr
    • Also, if you decide to buy an iBook, be aware that it CAN'T run with an external monitor in any higher resolution than it's internal LCD, something my old Dell latitude from 1997 does with no problems at all :-(

      This is only true if you blindly follow what Apple tells you on their website. But this is /.! We don't need no stinkin' rules! The fact of the matter is the iBook graphics hardware is identical in every respect to Powerbook hardware, which has the ability to drive external displays at different

  • Benchmark scores (Score:5, Informative)

    by Bazzargh ( 39195 ) on Thursday February 05, 2004 @07:53AM (#8187971)
    Here's the SciMark 2 [] benchmark scores for various platforms. This isn't an entirely relevant comparison for development as its comparing one aspect of CPU+JVM, eg I/O is neglible, but it gives you some idea of whats going available.

    A dual G5 placed 15th in the list of submitted scores:
    1. 554.92 Sun 1.4.2 WinXP 5.1 Sun. 1.4.2; IBM; P4 3GHz
    15. 226.23 Apple 1.4.1_01 MacOSX 0.2.7 Apple Computer, Inc. 1.4.1_01; Apple G5; PowerPC 970 2x2Ghz

    there's a lot of x86 ahead of PPC. I've got no axe to grind here, I have a powerbook myself and I find it a pretty decent working environment - partly I wanted one because I use wintel in work and wanted to get away from that when doing my own stuff.
    • Re:Benchmark scores (Score:5, Informative)

      by AusG4 ( 651867 ) on Thursday February 05, 2004 @10:40AM (#8188964) Homepage Journal
      This is very interesting.

      One of our contractors at work was saying to me the other day that when I/O is taken into consideration, they're seeing speed on their PowerBooks outclass their AMD MP servers... they narrowed it down to Apple's implementation of the JDK just doing a very good job moving large amounts of data around.

      The real trouble here is that it's so hard to say "platform X" is faster, when it really depends on the application being executed. You might find that the PowerBook is a great machine for your first project, but your second project which is less I/O and more CPU intensive doesn't run as well.

      I tend to think that ultimately, you can never have the fastest platform at -all- the tasks you want to perform when developing, so the best bet is to buy what you're most comfortable using and be aware of the strengths of your target platform when developing. With Java being cross-platform, this is more difficult because you may be deploying on a range of end-user machines.

      Sigh... the perils of an open world. :)
    • Re:Benchmark scores (Score:3, Informative)

      by djward ( 251728 )
      Not that this would completely invalidate the results, and they were just using whatever was most recently available for each platform for the test, but:

      Sun 1.4.2
      Apple 1.4.1_01

      Apple's since released 1.4.2, which apparently includes some substantial performance enhancements.
    • by Warhaven ( 718215 )
      I wouldn't put much faith in that. They're benchmarks submitted by individual users. Take a look at the computer info. You have single Athlon 1700's outperforming dual 2200+'s. I'm sure the result would be a very different story in a controlled environment.
  • by cplim ( 70217 ) on Thursday February 05, 2004 @07:56AM (#8187981)
    Although performance is important, it also depends on your development environment. For some of the work I do I need a database (PostgreSQL), and it makes it a hell of a lot easier to have the database, Java Application Server and IDE working on the one box so that if I need to work from home I can.

    Although Windows does have postgres available via. Cygwin, I had some difficulty installing it on my windows box... so I got a Mac instead. :)
  • by Trurl's Machine ( 651488 ) on Thursday February 05, 2004 @08:03AM (#8187998) Journal
    My general advice - Apple professional portable range was not updated since last September []. This means some update is imminent for next few months. Buying the Big Al now, you will pay the premium price for a '2003 machine. So if you can wait - wait. With Apple being the master of stealth in computer industry, no one can really guess when the new powerbooks will be released - and how good the upgrade will be. But right now, the gap between the hig-end Apple portables and the low-end Apple desktops is way too big. Especially for a company that actually relies on portable products.
    • Ugh, this is horrible advice. The fastest computer of tomorrow won't help with the work you need done today. If you need a new machine now, buy it now, else you'll always be playing waiting game.
      • by Trurl's Machine ( 651488 ) on Thursday February 05, 2004 @11:57AM (#8189921) Journal
        You are generally right, but just think that in early January 1999 you bought yourself a beige PowerMac G3. Next week Apple introduced the blue&white G3. Should you wait just a week longer, you'd end up with a much better machine, Panther-compatible. Sometimes the next model in the product line is just a minor upgrade. There is no reason to kick yourself if you bought an iBook 800 in late 2002. Its replacement was essentially the same machine with CPU speed bumped up by 100 MHz. But sometimes the next model is actually a quantum leap in performance. If you bought an iBook 600 in early 2002, it was a bad deal - if you'd wait just a week, you could get a machine with better graphics chip (thus supported by Quartz Extreme, and therefore getting all the nice bells & whistles like the Expose). The art of Mac shopping is the art of predicting those quantum leaps - and avoiding getting stuck on the wrong side. I guess such a quantum leap is imminent in the professional portable range (it already happened with the iBooks).
      • by Anonymous Coward
        Thing is... it's hardly ever true that you need a new machine now. What's really true is that a new machine now would be nice, and a new machine tomorrow would be good, and a new machine by next month is a fairly big deal, and a new machine by next year is essential. It's a rising curve: necessity increases with time, you see.

        The price-performance value curve increases with time... but it doesn't do so steadily. It's punctuated by new product releases. The best time to buy is right after a "speed bump" rel
  • by NSObject ( 250170 ) on Thursday February 05, 2004 @08:17AM (#8188040)
    We developed a fairly large (~80,000 lines of executable code) WebObjects application. Our dev machines are all 15" PowerBooks in the 800 to 1GHz range.

    Compile performance is fine, but more importantly, it's always improving. It's 50% faster that it was a year ago on the same machine. Xcode's predictive compiling only works with GCC for now, but if there's a way to stick it on javac or jikes, Apple will do it.

    Apple likes Java. They have a vested interest in it via WebObjects - which is the back end for iTunes and the whole Apple online store. 100% Java. They're also getting into JBoss and other Java related open source projects.

    The development tools are really nice, and you *will* get hooked on the PowerBook. We've got two 2.8 GHz Windows boxen available. Nobody uses 'em... except SETI.
  • by polyp2000 ( 444682 ) on Thursday February 05, 2004 @08:35AM (#8188113) Homepage Journal
    I have found that running Linux on a 333mhz G3 runs a hell of a lot faster than OS9 on the same G3. Its also faster than Linux running on a x86 of the same speed.

    The core of OSX is based on Darwin/BSD and as such I would expect similar speed improvements, but you'd better make sure that you get a powerbook with a nippy GPU because the GUI might mask the true speed of whats going on under the hood.

    I'd go with the powerbook, they are lovely machines, I cant wait till I can afford one, all that unixy goodness in such a small package, and having apps such as iMovie etc, it would also be a fun purchase.
  • xcode my friend... (Score:5, Informative)

    by paranoidsim ( 239426 ) on Thursday February 05, 2004 @08:40AM (#8188129)
    The powerbook is perfect for java development or any development for that matter, why? Directly from
    Working Fast

    The distributed build feature leads Xcode's performance technology lineup. Using Rendezvous, Xcode can farm out your project's compilation to idle desktop machines or even an Xserve build farm, drastically reducing compile time. Enabling near-instant turnaround for bug fixes, Xcode's Fix and Continue feature lets developers change code while the app continues to run.

    Rendezvous, hard to spell, a pleasure to use.
    • Except that it still doesn't have autocomplete for Java (though it now does for Objective C). No wonder it's so fast, relatively speaking. It's not really doing much SubEthaEdit [] can't.

      If you want a glorified text editor with access for running Ant scripts, may I suggest VIm [], instead?

      If you want a great Java IDE, go with Eclipse. If you want a text editor, use VIm (or BBEdit if you have to). If you want to code Objective C, use PB/Xcode.
  • My Experience (Score:5, Interesting)

    by MarkX ( 716 ) on Thursday February 05, 2004 @10:35AM (#8188907) Homepage

    I did a similar transition two years ago. I went from a 1GHz PIII Dell Laptop running Red Hat something or other, probably 7.X, to a 450 MHz G4 PowerMac. The Power Mac was slower there is no question, but being able to have a Unix box with a native version of MS Office, and a complete Java environment was the clincher for me.

    My development environment at the time:

    • with Vim
    • JBoss 2.4
    • Ant
    • Enhydra 3.1
    • MySQL w/ InnoDB

    I did extensive testing at the Apple store near me to make sure everything would work before making the move. They let me use a machine for two weekends solid. I would show up Saturday morning with my Dell laptop. I would take their top machine off the network and cross over cable it to the Dell, then copy all of my stuff over to the Power Mac. What I found after extensive testing is that the G4 running Java is basically MHz for MHz equivalent to a PIII.

    Now, I was very happy switching to the Power Mac. Since then I have acquired a new Power Mac DP 1GHz, and an iBook 700, and both of them handle my environment very well. Of course the Power Mac is faster, but the iBook is acceptable. I would never go back to an Intel based laptop for Java development. Apple laptops are simply first rate, OS X stays out of the way, and the JVM is rock solid. I would guess that my next Apple laptop will be a PowerBook simply for the ability to pack it full of RAM.

    So, get the PowerBook and come on in the waters fine,


  • by psyconaut ( 228947 ) on Thursday February 05, 2004 @10:48AM (#8189062)
    Quite frankly, I *love* doing Java development on my Powerbook. I don't develop huge apps, though.

    But what I do like is that I can easily have MySQL and Sybase running in the background, a bunch of Office v.X apps open, and still do compilations with little performance penalty. OSX seems to be the master at keeping many apps open without being like mollasses in January -- which is contrary to most of my PC experiences.

    And Java works *well* on OSX now. Seemless. Xcode is great (and free), too.

    Just my 2 cents (Canadian).

  • by Anonymous Coward on Thursday February 05, 2004 @11:13AM (#8189345)
    "I do most of my engineering on my PowerBook," James Gosling states flatly. "I find it dramatically more efficient than a desktop system because, on one hand, it has all the power of a full-blown UNIX desktop. On the other hand, I can take it with me because it has all of the laptop stuff. I can work on a airplane, at home, in a corner when I'm sitting in a boring meeting. And it's able to do not just email and browsing, it's got fully-functional, high-end software development tools."
  • by splattertrousers ( 35245 ) on Thursday February 05, 2004 @11:31AM (#8189593) Homepage
    Nobody buys a Mac because it is faster or cheaper than a PC. Apple says that Macs are faster. Others dispute that. Others dispute the disputers.

    It doesn't matter. You buy a Mac if you like Macs. I personally enjoy using Mac OS X far more than using Windows. Everyone I know who uses Macs love Macs. Nobody I know who uses PCs love PCs, they just tolerate them. But you need to decide for yourself.

    Now, you asked about Java performance on the Mac. It's fine. I recently switched from doing Java development on a PC to a Mac, and the Mac was faster. It was a faster machine (a dual 1.25 GHz G4 vs a single 1.6 GHz Athlon), so what this proves is that the Java performance on the Mac isn't totally horrible (otherwise the faster machine would have been slower at Java).

    One thing to consider is that Apple, not Sun, is in charge of making the JVM. Apple is always a bit behind. They just recently released 1.4.2, for example.

    And I would disagree with the people who recommend XCode. It's a nice IDE, but if you're doing pure Java, then you're better off using a smart IDE like IDEA [] or Eclipse [] that can do refactoring and smart code completion. IDEA and Eclipse both run fine on the Mac, though they look and feel a bit weird (IDEA has been getting much better recently; check out the version 4.0 release candidate [] instead of the currently-shipping 3.0 release).

    Finally, if you do decide to get the Mac, and you've never bought a Mac before, here are some tips: Apple (like all manufacturers) charges a lot for extras so you might want to consider buying extra RAM elsewhere, and fixing a Mac can be expensive so I would recommend Apple's extended warranty, especially on a laptop.

  • by PierceLabs ( 549351 ) on Thursday February 05, 2004 @11:58AM (#8189931)
    I work on Java projects for a living. I have a 1.25Ghz 15" G4 Powerbook an 800Mhz Dell piece of crap laptop, a 1Ghz P3 and an Athlon 2200.

    For compiles, the x86 processors are just always faster. For runtime performance the x86 processors are just always faster (except the Dell laptop). For general use and stability, the Powerbook is just always better. I don't have to worry about IT coming to check my machine for virii. Most of my unix tools work without a hitch without having to launch an internal OS as I do on windows, Apple listens to and responds to bug reports, and my Powerbook is still better at living in a mixed OS environment than my XP boxen.

    If price is a concern - x86 is still the way to go, even if the G5 is under consideration. If being able to coexist happily with much of the Linux, Unix, open source world is more of concern - I've found that OSX is the ideal platform. All of the pleasure of dealing with Unix with none of the pain of HAVING to deal with the lacking areas of Linux :)
  • my own experiences (Score:5, Informative)

    by koehn ( 575405 ) * on Thursday February 05, 2004 @11:58AM (#8189939)
    I've been a Mac guy since the 80's, and a Java guy since the mid-90's. I started doing Java development on Mac OS, back when Sun and Apple were shipping a JDK for Mac OS. Those early releases were crap, painful, and buggy, but in that the Mac was no different than any other platform.

    Now I work for a software consulting firm doing fairly high-end Java development. All of that development takes place on Windows, and is deployed on Unices of various flavors.

    Lately I've tried using my Mac for development on Java. I really, really have. But I have to say this, though it pains me to do so: it sucks for Java development. I thought, "Wow, a Unix based system with a great GUI! What could be better! I have a local CVS repository, all the tools like Ant, and none of the Windows wierdness!" Yet somehow, Eclipse doesn't work right. NetBeans, well, it's still NetBeans. IdeaJ doesn't look right and takes forever to launch. WSAD doesn't exist. Xcode, for all the hype, doesn't make sense to me: I'm sure it's a great tool, but I've worked with more than thirty different IDEs in my career (not counting revisions), and Xcode just feels wrong somehow.

    My Windows box runs these apps flawlessly (except Xcode and NetBeans, which sucks on Windows too), and I'm so much more productive than when I use my OSX box that it's not funny. It's not so much that you can't do it on Mac OS X, but that because of the additional support, it's actually easier to do it on Windows. I spend less time fscking around with configuration, alpha builds, gui bugs, and slowness.

    I use my Macs for a lot of stuff, and I'm about to migrate my mail/web server from Linux to Mac OS X server. But my Java development will continue to be done on Windows for a while longer.
    • What do you mean IdeaJ doesn't look right? I use it all the time and it is by far my favorite app for Java development.
    • >> My Windows box runs these apps flawlessly (except Xcode and NetBeans, which sucks on Windows too)

      Xcode for Windows, where do you get that? Are you making up things?

      It looks that your Mac experiences are totally out of date. Xcode is a very powerful IDE but may take some effort to learn.
  • by Pengo ( 28814 ) on Thursday February 05, 2004 @12:19PM (#8190215) Journal

    I honestly was a bit scheptical myself before buying a laptop. I have been notorious at my company for buying a laptop and finding a way to give it to someone else and end up back on my workstation. About 2 years ago, when the tiBook had released the 800 mhz chip version (pre superdrive), I decided to make the jump.

    First, the tools have come a long way. I was quite used to running eclipse on windows/cygwin or linux. Eclipse was very immature on mac when I bought my tiBook, but now isn't a problem.

    The speed isn't the fastest in the world, probably on par with any lower end windows laptop you can buy today for 1100-1500 dollars still. BUT, I do strongly prefer to do java dev on my mac still. This is the first laptop that I have used as long as I have. It's working well enough, I am not sure I am going to even upgrade it this year.

    iChat is pretty sweet, I use that as my primary communication tool with the rest of the engineers on my team. Unix terminal is great, I would get iTerm (Free), which is prefect for working on my remote app servers. Resin runs fine on my mac, so I can emulate my full development and deployment platform.

    I also do a lot of scripts in Python as well, panther comes out of the box with everything just working. I haven't even bothered to install the debian tools apt for my mac yet.

    JEdit is a great tool that runs perfect on my mac as well.

    Now, I haven't reviewed the update that landed on my laptop yesterday, jdk 1.4.2. (automatic updates are nice).. but seems that everything is still working great after the update.

    The ONLY complaint I have about my model is the poor reception on the wireless card.

    My battery still seems to be holding strong.

    I can't play any games on it, but thats probably not a bad thing as I would probably just get distracted.

    I don't even bother with office for OSX anymore, as openoffice seems to suite my needs. Just find a Cocoa based launcher and your set.

    I guess I would recomend that laptop if your wanting a nice tool for doing your work in. The tools are all there, if you use Java based tools. I am sure that the newer powerbooks would just 1-2x faster than what I am used to, but I am not complaining about speed at all. (My home workstation is a 3.06ghz comp with 2 gigs of ram, my laptop doesn't feel unreasonbly slow even after goofing with linux/windows on that machine).

    My final advice is, determine if there is anything that you HAVE to do that won't work on mac, if the answer is no, it's definately a good buy and even though the laptops are a bit expensive, in my opionion, I have gotten every penny and more out of mine thus far and eventually when I feel my laptop is just not able to cut it anymore (no idea when this will be) will be replacing it with another apple high end laptop.

    Good luck
  • My Tests (Score:3, Informative)

    by Anonymous Coward on Thursday February 05, 2004 @12:52PM (#8190631)
    Using the DhrytoneApplet I found at / [], here are my results:

    G3 IBook 700MHz, 640MB PC133 RAM, 20GB HD, Combo Drive
    12182ms run time
    820833 dhrystones/sec

    G4 PowerMac Dual 800MHz, 1.25GB PC133, 80GB HD, Super Drive
    9892ms run time
    1010917 dhrystones/sec

    G5 PowerMac 1.6GHz, 1.25GB PC333, 160GB SATA HD, Super Drive
    5596ms run time
    1786990 dhrystones/sec

    You can test your machines to see where you stand. I am suprised at how little difference there was between the G3 and dual G4.

  • by rgraham ( 199829 ) on Thursday February 05, 2004 @01:05PM (#8190780) Homepage
    I had a similar question [] posted to Ask Slashdot a couple of years ago. I went ahead with the purchase of a TiPB (now using an AlPB) and I can my experience has been great. Java and OSX go together very well and there is always a slew of people using PowerBooks/iBooks whenever I attend any Java related event.

    One thing that I have noticed with Apple's JDK/JVM is that it does seem to take a little longer to fire up than Sun's JVM on Linux and Windows machines. I'm not quite sure why that is but in general it has been a non-issue.

  • by patrick42 ( 212568 ) <(slashdot) (at) (> on Thursday February 05, 2004 @01:07PM (#8190799) Homepage
    If you're looking for a good Java compiler, Metrowerks Codewarrior [] is extremely fast, especially on the Mac. I'm not sure how it does it, but not only does it compile what seems like a hundred times faster than javac, but it also produces much more optimized byte code.

    I say go for the PowerBook. You'll be getting a great all-around system that you'll love using. I just got a 1.25GHz 15" PowerBook, and it is by far the best computer I've ever owned.

  • anyone got a solution under Panther so that I can justify to carry a PB around?

    Having JDK1.4.2 is great but the lack of J2ME 2 is more and more like missing a limb now, and the pain is growing each day.

    "The problem of standard is there are too many of them."
  • by oobob ( 715122 ) * on Thursday February 05, 2004 @02:15PM (#8191694)
    It was reported that Apple was having trouble getting g5s into powerbook because of the immense heat dissipation and power consumption. But with the 90nm version of the chip, these problems *should* be solved.

    IBM is already claiming a massive power cut. Check The Register []. My advice? Certainly wait for the next product cycle, and if you can, wait for a second revision g5.

  • by sbahn ( 314209 ) on Thursday February 05, 2004 @02:32PM (#8191932)
    I'm a java programmer and I worked very hard to convince my boss to get me a 15" powerbook when it came time to order me a new machine. Funny thing is, it took me 8 months to justify mine, but then within one month three of my coworkers had theirs ordered. It's a great machine for development and it catches looks when working off site at the cafe too!

  • by mactari ( 220786 ) <> on Thursday February 05, 2004 @03:01PM (#8192300) Homepage
    About once every month or so, this same question seems to come up on the Apple Java development list [], sometimes to a chorus of near flames where one person will remark, "Eclipse doesn't run half as fast on twice as expensive a Mac as my Pentium" and others will remark, "Depends on what the meaning of 'is' is."

    Please, folk, yes, the Powerbook is now officially great for hacking Java. James Gosling has used one (as has been remarked) and apparently the JavaONE conference was full of 'em.

    Here's all you need to know:
    1.) Macs are slower in "anecdotal subjective tests" using Java on a "util of perceived quickness/dollar" ratio.
    2.) Apple produces its own port of the JVM, so you're often an official release or two behind Sun's JDKs (so Linux on x86 or Windows).
    3.) Java3D is apparently finally out on the Mac. Sheesh. (Another "post a month" topic on the list)
    4.) The Apple JVM has historically not been as sharp as Sun's on Windows. Witness the 1.4.1 release on OS X 10.2 -- later unreleased through Software Update, with Swing that's buggy as heck. And I still haven't seen a J2EE specific release.
    5.) Prepare to pay for the latest OS (10.3 required for 1.4.2) as well. That's a $129 surtax for Java 1.4.2 that you're not paying on Windows 2k, much less Linux.

    And the all-important 6.) Yes, you will look and feel 733+ running your development on a Powerbook.

    I use a 1 GHz iMac to hack and though Eclipse's speed is just above a 533 Celeron I run (and much less than my 2 GHz P4), it does just fine. Still, keep an x86 box around for some testing at some point. Write once, test everywhere.
  • by MidKnight ( 19766 ) on Thursday February 05, 2004 @03:03PM (#8192314)
    I'm a full-time developer, whose Java work typically pays the bills. I have a 1GHz Powerbook that I use; it's the only real UI-friendly computer I even turn on these days (the servers at clients' sites & in my closet don't count). I do all my day-to-day development on my Powerbook, with a CVS server running elsewhere that does the "official" builds, backups, etc etc.

    Overall, I've never noticed a performance problem when compiling large applications. As a barometer, I just did an "ant clobber dist" on a current project (around 200 classes, plus 50 JSP pages, etc etc), and it built a distributable in 18 seconds. Not too shabby. Overall, Java compiler performance shouldn't be a concern in purchasing a laptop; if your build takes too long, it's more likely the fault of a poor build process than a slow compiler!

    Anyway, Java integration into Mac OS X is the best in the industry. It's amazing -- Apple's OS is more Java-aware than Sun's :) Full graphical Java applications run fast, Java Web Start [] is built in, and the OS ships with a built-in Java Application Server, JBoss []. The only downer is that JVM releases typically lag Sun by 4 - 6 months, but that's acceptable in my mind; it takes that long to shake the "D'oh!" bugs out of a VM anyway.

    Finally, if you're going to do lots of development at a desk, I'd also strongly recommend plunking down the $2K for an Apple Flatscreen. [] Yeah yeah, it's expensive... but you'll be more productive with a great external monitor. And if you're going to be buying that much hardware, you might as well look into joining the Apple Developer Connection [], as you might be able to get 12 - 20 % off of hardware purchases (especially if you can claim Student status somehow).


  • ... You need a sloped surface of some sort, an orange and an apple. Same thing.
  • I'm kinda waiting for the G5 Powebooks. I currently have a 1Ghz TiBook with a Gig of ram and a 5200rpm drive that I dropped in it. My memory speed is at 133mhz and I have noticed a difference on my Mom's iMac (ddr 333) and my friends 17" Albook (ddr 333). Haven't test Java on the latter machines tho.

    However, I've been using my Tibook (and my previous 500Mhz) for years and I've been very pleased with the Java performance. I do see some issues with some Swing apps bein kinda weird, but all in all, Java integ
  • by javaxman ( 705658 ) on Thursday February 05, 2004 @05:00PM (#8194058) Journal
    Look, the real answer is that of course, even for very, very large Java projects, a newish G4 PowerBook is going to be fast enough.

    You might be able to find a P4 laptop you can cook an egg on and might also compile your app a little faster, but what is it going to save you, really? 3 seconds per compile, if that?

    When developing, if you're any good at all, you spend the bulk of your time writing code, not compiling it. If you're not very good, most of your time is still spent fixing errors reported by the compiler, or debugging code, and so maybe the debugger is where you should be asking performance questions.

    Either way, deciding if you should get a Pentium or G4 based on compiler performance when what you're doing is writing code is somewhat like asking if you should get a Dodge or a Honda based on horsepower when what you're doing is driving a couple of miles to work... I mean, it's very likely that *other* factors are more important, like ease-of-use, target deployment platform, what you'd rather be spending your time/money on, preferred editor/IDE, etc... and in the long run, either one will do the job. Of course, my answer is don't send money to Microsoft, they have plenty.

  • by FredFnord ( 635797 ) on Thursday February 05, 2004 @05:04PM (#8194120)
    Amongst the hats I'm currently wearing is that of a build engineer for a company that has a java product. We build using Apple's Java 1.3.1 on the Mac (to avoid some incompatibilities with 1.4.1) and Sun's Java 1.3.1 on Windows.

    Our project builds in the following times: (minutes:seconds)
    2:27 700 mHz P3 with 256 megs RAM
    1:56 800 mHz Duron with 1 gig RAM
    1:09 1.5 gHz P4 with 512 mb RAM
    0:56 1.25 gHz G4 (15" AlBook) with 512 mb RAM

    Bear in mind that this is 1.3.1, and I don't have any stats for 1.4 onward.

  • by afantee ( 562443 ) on Thursday February 05, 2004 @09:29PM (#8197017)
    I have used a 700 MHz G3 iBook and a 1.25 GHz G4 PowerBook for Java development, speed has never been an issue.

    Java apps look and feel great on OS X, much better than on Windows. With the toll-free Java Cocoa bridge, Java is an almost native language like Objective C, and UI design with Interface Builder is 1000x better than Swing.
    • Having written a Java/Cocoa application ( and run into a lot of serious obstacles, I am here to tell you that Java/Cocoa is not the way to go. At best, maybe if you have good MVC, you can take Java model classes and hook them to an Objective C controller/view layer, but there are just too many stupid problems otherwise.

      Maybe it would be different if Apple actually wrote an important application in Java/Cocoa. The team doing it would walk down the hall and beat on the Java folks to fix some of
  • I wish I could give an x86 notebook to G4 Powerbook comparison, but I have never owned a Powerbook. I have owned several x86 machines, an iBook and a couple of PowerMacs, including my current 1.8 GHz G5 that I have had since October. I have been a Java developer since the late 90's, so maybe some of my experiences will be useful.

    In 2000-2001, I had three machines I did most of my work on. My work machine was a Dell desktop (P3/933, 256 MB, 7200 RPM 30 GB drive, Win2K.) My home machine was a desktop I bui
  • by patniemeyer ( 444913 ) * <> on Friday February 06, 2004 @01:30AM (#8198506) Homepage
    Building BeanShell on my 17" 1Ghz powerbook is faster than on my sparc ultra 60.

    But, forget about speed, you'll love the PowerBook.

    I've pretty much migrated all my Java development to it without even noticing... It's just a nice platform.

    Pat Niemeyer
    Author of Learning Java, O'Reilly & Associates and the BeanShell Java scirpting language.
  • by Stephan Schulz ( 948 ) <> on Friday February 06, 2004 @07:41AM (#8199817) Homepage
    I have a Powerbook G4/1GHz, the last generation Titanium Powerbook, which still has the rather lousy old memory interface. In my experience, and for my kind of work (which is mostly C compiling, LaTeX, and theorem proving, somewhat similar to compiling in CPU usage, but more hungry w.r.t. memory), a G4 is about as fast as a P3, MHz for MHz. That is, a 1GHz G4 should be roughly at the same level as a 1.5GHz P4.

    With the better memory bus in the new machines, I guess that the 1.25/1.33 GHz ALBooks should come close to a 2GHz P4. In other words, they are plenty fast enough for at least medium sized projects (and if you use a reasonably smart development environment, e.g. make, you rarely compile a lot of stuff in one go anyways.

    For me, I'm very happy with my machine. It's not the pure performance, but rather the whole package. It is actually a pleasure to just sit there and type away on the keyboard. And I'm using it mostly under X11/Fink, so it is not attribuatable to the OS (although MacOS-X is farly good), it is purely due to the nice materials and reasonably ergonomic design.

  • Sexiest Laptop Ever (Score:5, Interesting)

    by valmont ( 3573 ) on Friday February 06, 2004 @02:48PM (#8204015) Homepage Journal

    i work for a large ISP in a team that builds a comprehensive portal that receives over 6 million unique page views in any 24 hour period. it's written in Java and runs in a Java Servlet Container (open-source)). Since Apple came out with the TiBook in 2001 and OS 10.1, my boss and i were the first ones to switch to powerbooks and OS X in the department.

    Jump forward in late 2003, i now have a 1.25Ghz 15" powerbook with 1Gig of RAM and 80GB HD, and let me tell you, there is no end to what this thing can do. it will complete this mechanism that goes thru our whole JSP web application tree, converts each .jsp into .java then compiles into java byte code in about the same amount of time the fastest x86 laptops do. tho i dont have precise numbers. might be faster, might be slower.

    while i understand your main focus is on raw power, i would urge you to consider productivity as a factor, based on your operating system's stability, security, and features. XP has greatly evolved in many aspects, and any good engineer can deal with just about any OS. With that said, OSX goes the extra mile to make your overall computing experience much more powerful, especially with Panther.

    Expose, Fast User switching, XCode, Apple's own implementation of X11 (comes on the panther CD, it's *F A S T*, GIMP loads litteraly in under 5 seconds) so u can run any open-source app you want. for crying out loud. forget cygwin under windows, here you have a true UNIX bash shell. or tcsh. or ksh. it's all there. all the command-line utilities from the Unix and Linux world are all there. the cmd-line can also trigger things to happen in the finder/aqua-world: "open" could open a directory in a find window, or a file in which ever application created it.

    let's talk about address book, calendar and mail. You may import all your Yahoo, Mozilla, Netscape contacts into lets you subscribe to calendars, accept .ics invitations, publish your own calendar, define multiple coexisting calendars. Safari's bookmarks interface will show u URLs defined in your AddressBook. will read information from AddressBook to show email addresses as clickable "People Objects" and add new email addresses to your address book directly from an email you're reading. You can drag any picture from the web or iPhoto, or your desktop to an AddressBook entry, where it lets you zoom the pic in or out, crop, position, pictures associated with contacts show-up in when u receive email from them. They also show-up in All those applications are very simple yet VERY powerful and are also well-defined open APIs any software developer can interact with. For example EarthLink lets you sync your Mac OS X AddressBook with their own online address book, which greatly facilitates email whitelisting to work with their highest-level CR-based spam-blocking feature (lower-level spam-blocking is Bayesian-ish filtering based on email content). comes with its own adaptive Bayesian spam filtering that becomes smarter and smarter overtime as you "train it". Mine has become *extremely* effective at blocking spam, and i can tell you this is a definite productivity enhancer. Then there is iSync. A true marvel. iSync is also an open API to sync multiple devices over just about any port or conduit. Most PDA-ish devices and Phone manufacturers have made their devices compatible with iSync, and more are coming on the market every day. Your Calendars, Contacts, Bookmarks can all be sync'ed via iSync to any number of devices WITHOUT installing a single piece of software that may have shipped with such devices. this is HUGE. Currently i'm using iSync to sync an iPod (bookmarks, address book, calendar, over FireWire), a Sony Ericsson t610 (over bluetooth, built-in all the Aluminum powerbooks, including mine), my .MAC account (calendar, address book, bookmarks, over HTTP/webdav i think). I could buy a Palm Pilot and just sy

  • by gregluck ( 668236 ) on Saturday February 07, 2004 @08:07AM (#8210939)
    Build times for Java are a combination of source code generation, compiling, jar execution and ant scripts.

    I have an app I just built on the following machines:

    Apple Power Mac G4 867 with JDK.1.4.2 - 18 seconds
    Toshiba 1.8Ghz PIV with JDK1.4.2 - 16 seconds

    I find both machines fine for running IDEs like IntelliJ 4 and JBuilder X. Your 1.3 G4 should be fine for the next 2-3 years. Java is also actually getting faster as it goes, so even my older hardware feels great 2 years on.

    So, I would say that speed should not be the differentiator.

    One thing to consider is that new versions of Java are out for Intel - Linux and Windows before Mac. This is an effect of Apple doing their own JDK under licence from Sun. For example JDK1.5 beta is out on Intel, but will probably be 6 months away on Apple. Apple just released JDK1.4.2, once again about 7-8 months behind Sun. You get the same situation on HP-UX and Compaq Alpha.

    On the other hand no other OS vendor is as committed to Java as Apple. It is a first class language for Mac development.

    James Gosling, Martin Fowler and a lot of people from the company I work for, run their Java on Mac.

    Finally, Java, with the Quartz look and feel looks just beautiful on Mac.
  • Another data point (Score:4, Informative)

    by erwass ( 665113 ) on Monday February 09, 2004 @02:44PM (#8227893)
    I recently did a head-to-head comparison of a 15" 1.25GHz AL Powerbook against a 2.6 (2.8?) GHz P4 HP notebook running WinXP. The "test" was a clean rebuild of our modularized ant-driven Java project. This includes generating ten or so Apache Axis based web services, generating lots of java constants files from xml, and compiling and merging the outputs. The code generation an general ant manipulation takes about half the wall-clock time. I consisder this to be a fairly typical real-world example of commercial java development.

    The result:
    the Powerbook was three times faster than the P4 notebook.

    I suspect the PowerBook's faster speed is due less to the CPU than to the I/O subsystems and disk. In our build neither type of CPU sits there pegged at 100%. The P4 did seem to be riding closer to 100% though. It also spent the entire time blowing hot air like a hair dryer. The PowerBook fan very rarely comes on. Overall the PowerBook has been a great development platform for Java. I run eclipse 3M6 on it and while its not as snappy UI-wise as I'd like, once it gets "warmed-up" visiting all the eclipse perspectives and views its not bad at all. Clearly caching is important for eclipse performance. This brings me to the final point which is that on either machine if you want to use a Java based IDE you will need 1Gb RAM minimum. The IDE's are just pigs for memory. One warning, while running eclipse 2.1 on Windows I ran into nasty eclipse-crashing problems with running out of windows resource handles which I was never able to get around. (The eclipse developers couldn't reproduce this so YMMV.) The PowerBook hasn't had any such problems.

"Well, social relevance is a schtick, like mysteries, social relevance, science fiction..." -- Art Spiegelman