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Re: is GC not available on 10.5.8?
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Re: is GC not available on 10.5.8?


  • Subject: Re: is GC not available on 10.5.8?
  • From: Bill Bumgarner <email@hidden>
  • Date: Fri, 23 Oct 2009 08:47:21 -0700

On Oct 23, 2009, at 8:40 AM, Nick Rogers wrote:

> Thanks for the reply.
> The app actually works as a launcher of another app with root privileges (its only job is this).
> Hence its a standard cocoa project with the following frameworks:
> CoreFoundation, Cocoa, AppKit, CoreData, Foundation and Security frameworks.

To debug the problem, I would suggest turning on the DYLD_PRINT_LIBRARIES environment variable and see if it stops printing at a certain library, then check to make sure that library is both 64 bit and GC capable.

However, for best performance on 10.5.x, I would suggest compiling your launcher app as a 32/64 bit application.   32 bit applications on 10.5.x will be more efficient in that the 32 bit chunks of all the shared frameworks are always "kept hot" by other applications -- you'll tend to page less under memory pressure with a 32 bit app on 10.5.x.   (The opposite is true on Snow Leopard and, as more and more applications go 64 bit, it'll become more-so over time).

b.bum

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References: 
 >is GC not available on 10.5.8? (From: Nick Rogers <email@hidden>)
 >Re: is GC not available on 10.5.8? (From: Bill Bumgarner <email@hidden>)
 >Re: is GC not available on 10.5.8? (From: Nick Rogers <email@hidden>)

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