Thank you for your kind reply. I looking for Working-set "window" (range, delta). How much frames does working set algorithm considers? What is the name of variable into source code? thanks, /\AndreA/\ Lunedl, Agosto 5, 2002, alle 03:59 PM, Jim Magee ha scritto: On Saturday, July 27, 2002, at 05:43 PM, luisella wrote: Hello, I'm studying Darwin kernel and I found some information about working set on Mach Virtual Memory. "The first time that an application is launched in a given user context, the initial working set required to start the application is captured and stored in a file..... /var/vm/app_profile". Why I didn't find this file into my iMac with OS X 10.1.5? In Mac OS X 10.1.x (Darwin 5), the VM system would dynamically track working sets of running applications and use that for page replacement/fetch purposes. But the cache of early working set info across launches is new to Mac OS X 10.2 (Darwin 6). --Jim _______________________________________________ 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.