On Wed, 16 Jun 2004, Nick Piggin wrote:
I think balance on clone probably needs to be turned off by default
presently.
It slows down a simple thread creation test by a factor of 7(!) here,
and has quite a few not too difficult to imagine performance problems.
I agree. However, I still think we should do my suggested
"wake_up_new(p,clone_flags)" thing, and then have the logic on whether to try to care about threading or not be in schedule.c, not in kernel/fork.c.
The fact is, fork.c shouldn't try to make scheduling decisions. But it could inform the scheduler about the new process, and THAT can then make the decisions.