Absolutely. And for many programs this is awesome. But for many others, such as your typical browser or desktop based app that spends 99% of it's time waiting on user input, it's overkill. I don't want to dis 64bit computing. I just want to explain that, like any engineering decision, it involves tradeoffs. BTW, I believe I heard that a 64bit Java plugin will be coming in one of the next few update releases, which means you could make an applet that accesses more than 4GB of memory. I wonder what interesting things you could do with that. I'll leave it as an exercise to the reader. :)
- J On Nov 16, 2008, at 8:57 PM, Casper Bang wrote: > > Yeah but memory is dirt cheap and it's now almost a decade ago 64bit > x86 CPU's were introduced. The beauty of 64bit is that many operations > which had to be broken up in composites on 32bit (i.e. on long and > double) can now be done in one go by the JVM. This has performance > impacts but probably more importantly, it means operations on these > are atomic and thus thread safe - not having to spread locking or > volatile directives around ones code or be an expert on the Java > Memory Model, could be seen as a desirable trait. > > /Casper > > On Nov 15, 5:19 pm, Joshua Marinacci <[EMAIL PROTECTED]> wrote: >> Keep in mind that going 64bit means many memory structures double in >> size. 64bit is great for certain applications that really need to >> access more than 4GB of memory, but for most applications >> (particularly desktop apps) it's overkill that wastes memory. >> >> - J >> >> On Nov 14, 2008, at 11:53 PM, Alexander Snaps wrote: >> >>> Todd, >>> Not sure this might actually help you, yet I've been using IntelliJ >>> within a >>> 64bit linux environment for quite some time. >>> I had to to increase the maximum permgen size quite a bit (around >>> 50%) to >>> have it to be happy first. After that I never had problems anymore. >>> It used >>> to be a Gentoo Linux on a Sun Ultra20 AMD Opteron box. It was my >>> main box >>> for a couple of years. Meanwhile I've switched to OS X and there I >>> only had >>> issue with IDEA8 on Java5, switchin to Java6 and increasing the max >>> permgen >>> again solved it too now, but that's another story. >>> Thought I'd share this... >>> Alex >> >>> On Fri, Nov 14, 2008 at 9:51 PM, ToddH <[EMAIL PROTECTED]> >>> wrote: >> >>>> I finally bit the bullet and upgraded to 64 bit Linux. I'm >>>> currently >>>> using the 64 bit Sun JDK and get very occasional hangs in Intellij >>>> IDEA and Jetty. Anyhow, I wrote about my upgrade here with links to >>>> some resources for anyone else considering making the move to 64 >>>> bit >>>> Linux:http://gabrito.com/post/moving-to-64-bit-ubuntu >> >>>> -Todd >>>> http://gabrito.com >> >>>> On Nov 10, 1:43 pm, ToddH <[EMAIL PROTECTED]> wrote: >>>>> I currently run 32bitLinux (Ubuntu Interpid Ibex) on my Core 2 duo >>>>> laptop which I mainly use for Java development. I'm about to re- >>>>> install my laptop to clean it up abitand switch to XFS and was >>>>> wondering if it's worth switching to64bitLinux? I've heard gripes >>>>> about the Java and Flush plugins for Firefox under64bitLinux. >>>>> Anyhow, my subjective question to the group is, is it worth going >>>> to64bitLinux or will it just be one headache after another to get >>>>> things working? >> >>>>> Thanks, >>>>> Toddhttp://gabrito.com >> >>> -- >>> Alexander Snaps <[EMAIL PROTECTED]> >>> http://www.jroller.com/page/greenhorn >>> http://www.linkedin.com/in/alexandersnaps > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "The Java Posse" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/javaposse?hl=en -~----------~----~----~----~------~----~------~--~---
