Note: this was just added 2 years ago. So it is relatively a recent change. Yes, most java developers in the enterprise are still using Java 6 or earlier.
Sent from my iPad On Sep 11, 2013, at 2:44 AM, Jean-Daniel Dupas <devli...@shadowlab.org> wrote: > This is the contrary. In Obj-c all pointers are effectively double size, but > in Java, they are not. > > See “Compressed oops" at > http://docs.oracle.com/javase/7/docs/technotes/guides/vm/performance-enhancements-7.html > > > Le 11 sept. 2013 à 00:18, Paul Franz <paul.p.fr...@gmail.com> a écrit : > >> Should be interesting to see how this plays out. When it comes to Java, when >> you switch from a 32-bit JVM to a 64-bit JVM there is a 10% penalty doing >> so. The main reason has to do with pointers. All pointers double in size. >> The effect might be less in a Objective-C program. >> >> Paul Franz >> >> On Sep 10, 2013, at 5:47 PM, Tom Davie <tom.da...@gmail.com> wrote: >> >>> >>> On 10 Sep 2013, at 23:30, Jean-Daniel Dupas <devli...@shadowlab.org> wrote: >>> >>>> >>>> For ARM, 64 bit matters because the instruction set has been updated to >>>> provider better performances. >>>> >>>> I just hope the performance boost provided by this architecture change >>>> will be enough to balance the slow-down due to the increase of instruction >>>> and pointer size. >>> >>> Note, this was actually more significant on x86, where most of the mess >>> caused by CISC (like having bugger all registers) got sorted out. >>> >>> Tom Davie >>> _______________________________________________ >>> >>> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) >>> >>> Please do not post admin requests or moderator comments to the list. >>> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >>> >>> Help/Unsubscribe/Update your Subscription: >>> https://lists.apple.com/mailman/options/cocoa-dev/paul.p.franz%40gmail.com >>> >>> This email sent to paul.p.fr...@gmail.com > > -- Jean-Daniel > > > > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
