Hi folks,
I seem to recall that with GC, one is limited to some amount of 'collectable'
memory, but I can no longer find what that limit is. IIRC, it's like 30 GB?
My 64 bit-only, GC-only app is crashing when I use "lots" of memory.
I can repro in a test app with this pseudo code:
- IBAction method for an NSButton:
- create 10 MB NSMutableData
- loop 20 times
- use mutableCopy on the NSData
In a retain-release app, I can click this button many times, exhaust physical
RAM, thrash, and get Activity Monitor's 'virtual memory' column up to at least
12 GB. No crash.
In a GC app, it crashes every time Activity Monitor shows around 4 GB usage:
#0 0x7fff81cfc4fe in -[NSConcreteMutableData
initWithBytes:length:copy:freeWhenDone:bytesAreVM:]
#1 0x7fff81cfc454 in -[NSData(NSData) initWithData:]
#2 0x10000174c in -[TestAppDelegate handleButton:]
...
Surely this should not be so?
Thanks for any suggestions,
--
____________________________________________________________
Sean McBride, B. Eng [email protected]
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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