On Tue, 2009-02-24 at 12:01 -0500, erik quanstrom wrote: > data would be helpful.
Indeed! Personally, I'm not old enough to have lived through most of these wars to tell a story. > nobody here has shown any version > of solaris to be slow forking, much less that it is slow > forking because of accounting. my dimly-remembered > data support the conclusion that the now-ancient 670mp > had a poor mmu, not that solaris was good or bad. Here's my understanding of Sun's oral history: MMU was, indeed, an issue. But somehow it wasn't really about shared objects at the time, but a simple COW machinery being slow. Thus vfrok() was born as an attempt to avoid *any* MMU work. Could it also be the birth of "Solaris's fork() being slow myth"? Thanks, Roman.