mjs (06/07/82)
Has anyone out in BSD-land considered the task of providing a user with the page fault behaviour of its program? The only way to do it with available tools (as far as I can see) is to make a version of the program which has a command line option to tell it what to pass to the vadvise syscall, then run it on "a representative set of inputs" and compare the output of the vtimes info collected (either by csh or your favorite variety of timing parent). Something that would be of interest to me would be a system call analogous to monitor which could put the page numbers of the first N page faults in a data area allocated by the user. Does anybody have any other suggestions? If anyone can fill Bill Joy's shoes (what's his shoe size, anyway?), perhaps the good folks at Berkeley have something up their sleeves? If not, can some kindly grad student take this project on? (I would, but I'm too busy fending off page faults on my stack of things to do....) Marty Shannon, Jr. BTL MH 5E-103 (201) 582-3199