On 8/13/05, Mulyadi Santosa <mulyadi.santosa@xxxxxxxxx> wrote: > Dear list > > I have several question regarding 2.6 scheduler. I will try to answer the one I know about. <snip> > 2. If a process issues yield(), in contrast with 2.4, 2.6 now drops the > process to the lowest priority (e.g MAX_PRIO). Isn't it risky as > sometimes yield() is used in certain application to voluntarily let > other threads on the same application to run? So instead of waiting all > the processes on same priority list has been executed, it is now forced > to wait so much longer .... Those apps are broken in a 2.6 environment. This is a well-known issue and the behavioral change in sched_yield() was announced during the 2.5 cycle (3 years ago now, I believe). Its use as a preemption method is broken, IOW. Thanks, Nish -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
