>Jonathan Adams <[EMAIL PROTECTED]> wrote: > >> you might avoid *some* of the expense (since, as of Solaris 10, system() >> uses vfork(), even on multi-threaded processes. So the "duplicating >> the address space just to tear it down at exec() time" cost is gone. > >Isn't vfork() nowerdays only slightly more expensive on Solaris than fork()?
No; fork() still needs to mark all pages COW; this is on operation which is O(size of addresspace). vfork() is O(1). >The main difference between fork and vfork is that fork uses copy on write >for the data segment. Measure it and be enlightened; specially which larger address spaces. Casper _______________________________________________ opensolaris-discuss mailing list [email protected]
