At 1:25 -0800 2/12/03, Steve Dekorte wrote: What's the limit on the amount of virtual memory OSX can support? There's no single answer to this question. Within any normal user task, Mac OS X supports 4 GB of VM. By default, chunks of this address space will be allocated to other things (like the frameworks), so the limit to how much VM you can /allocate/ is less. Within the kernel task, Mac OS X 10.3 supports 3 GB of address space (some of which may be pageable). On earlier systems, this limit was 1 GB. If you consider the totality of all the VM in all the tasks on the system, AFAIK there is no fixed limit. There are a variety of limits that you can run in to, the most likely being disk space. Swap space is allocated from files on the root volume. [Search "/etc/rc" for "dynamic_pager" to see where this is done.] If the root volume fills up, the pager stops paging out and you eventually run so short of physical memory that the system grinds to a halt. S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Technical Support * Networking, Communications, Hardware _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.