On Feb 6, 2008 11:19 AM, Rick Brown <[EMAIL PROTECTED]> wrote: > Hi, > > I had read that the operating systems that use copy-on-write mechanism > for fork(), it is better if they deliberately allow the CHILD to run > first. > > This would be better because in 99% of the cases child will call > exec() and the new address space will be allocated. Instead if the > parent is executes first, an unnecessary copy of the pages is made (if > parents writes) and later on when child executes, a fresh address > space is executed. > > So in linux, is a child run first or the parent? Can we rely on this > information?
No with fork() it is not guaranteed.......however if you use vfork() child is guaranteed to run first...... > > TIA > > Rick > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to [EMAIL PROTECTED] > Please read the FAQ at http://kernelnewbies.org/FAQ > > -- Thanks & Regards, ******************************************** Manish Katiyar ( http://mkatiyar.googlepages.com ) 3rd Floor, Fair Winds Block EGL Software Park Off Intermediate Ring Road Bangalore 560071, India *********************************************** - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs
