Da Zheng, le Mon 16 Aug 2010 06:02:17 -0400, a écrit : > Should we still handle the special cases in mach_msg or in another system > call? > > While sleeping in microseconds or nanoseconds, the kernel should do the loop > on > the behalf of the user process. Why do we still need a wakeup queue?
You don't want to busy-loop for whole microseconds, but rather use a hardware clock for that and get an interrupt when it's time to resume the user process. Samuel
