On Tue, Nov 13, 2001 at 10:43:03AM -0500, Charles Wilson wrote: >> The VM comment is referring to the large footprint of XEmacs which means >> that doing a fork requires copying an awful lot of data (and hence takes a >> long time), most OS's do copy-on-write for vfork so the overhead is never >> incurred. > >And of course, cgf chimed in on this thread, but I can't find his message >in my mail archive, and (as mentioned elsewhere) the cygwin ml archive is >missing his message as well, so I can't quote it here for you.
With vfork, there is very little copying going on. Only cygwin's heap is copied. Of course, if you don't use vfork then cygwin's fork implementation *is* pretty slow. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/