macOS Xcode 3.0

[younker]

I just wonder whether apple will release Xcode 3 for tiger, I think this can be helpful for developers to develop application for leopard, like what MS do, MS
releases the SDK of vista to public, then developer can develop applications on XP for vista.

Another question, Does gcc upgrade in Xcode 3?
I hope that gcc 4.1.1 or 4.2 will become the default C/C++ compiler.
In gentoo, gcc-4.1.1 already support gc for obj-c.

 

[garethlewis2]

That's the whole point of the paid ADC membership. You get the next beta release of the OS in this case Leopard and all the dev tools for it. For mere mortals not on the ADC premier or select membership you don't get ObjC-2 until Leopard.

For the GC on Java issue. On the project I am working on, we use the Sun performance tools which XRay is based on and it tells us exactly what the Java VM is doing at that moment in time. To stop our DataServer from stuttering every few minutes with huge numbers of GC'd objects we ran the GC on its own thread and made sure that the memory allocated to the VM was massive. The outcome, massive improvement in speed of the applications, no stuttering on the GUI, no sudden drops as the GC kicks in, it still kicks in, but runs its own thread and can do GC without having to suspend any other threads. If Apple can get ObjC-2 GC todo that and with C2D chips you have two HW threads, it will be stunning.