> I need a deeper understanding of priorities of linux processes and > threads, especially on Linux PPC. I have done some good reading, but > found no material to be complete and therefore I am raising a few > questions below. > > 1) In Linux processes have a static priority level 0, with nice values > -20 to +19. Then it has RT priority levels 1 - 99. My question is, do > the nice values apply to all processes or do they apply only to > priority 0? > > 2) How many total priority levels does the kernel have? On one hand, > -20 is the highest priority, on the other hand +99 is the highest. How > do these values converge? > > Please help me to answer these and depending on the reply I would > shoot more questions. In case you have a comprehensive reading > material to refer, please advise.
man sched_setscheduler has a good description of these levels and how RT and non RT processes interact. Mikey _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev