_syscall4, wake_up_interruptible(), and PID table questions

Alright, since my last e-mail generated no interest, I thought I'd refine my queries: 1. wake_up_interruptible() I am reading http://www.citi.umich.edu/projects/linux-scalability/reports/accept.html and the my question is what solution to the "thundering herd" problem was eventually chosen and

_syscall4, wake_up_interruptible(), and PID table questions

Alright, since my last e-mail generated no interest, I thought I'd refine my queries: 1. wake_up_interruptible() I am reading http://www.citi.umich.edu/projects/linux-scalability/reports/accept.html and the my question is what solution to the thundering herd problem was eventually chosen and is