Re: Cocoa-dev Digest, Vol 6, Issue 86

2009-01-16 Thread Nick Zitzmann
On Jan 15, 2009, at 10:19 PM, Tobias Zimmerman wrote: How does the OS determine what to allocate for the VSIZE. You'll get a better answer on the darwin-dev mailing list, but basically, the VSIZE is the total amount of VM address space allocated, which includes shared pages (typically sha

Re: Cocoa-dev Digest, Vol 6, Issue 86

2009-01-15 Thread Ashley Clark
On Jan 15, 2009, at 11:19 PM, Tobias Zimmerman wrote: I am grateful to everyone who has responded, and, as I expected, many concur that VSIZE is a (largely) meaningless statistic. However, I am still not entirely satisfied with the answer to my first question, which is: How does the OS det

Re: Cocoa-dev Digest, Vol 6, Issue 86

2009-01-15 Thread Tobias Zimmerman
> > > On Thu, Jan 15, 2009 at 1:59 AM, Bill Bumgarner wrote: > >> > >> For example, an application's VSIZE might be growing over time > >> because it is > >> mmap()'ing a bunch of files (or a few small files). If the app > >> fails to > >> unmap, the VSIZE will grow and the app may likely exhaus