I think it may not reasonable to do this, because you have to make sure the process that you would like to add to rb-tree (run queue) will not go to "sleep" (once you call some kernel APIs that may get into sleep). When this process uses this kind of kernel API and yield the CPU resources, the scheduler will remove this process out of run queue until it wake up. So, it may hard to make sure this process is exactly in rb-tree while "other user application" starting, right?
2012/4/25 Kanishka Ariyapala <kanishka...@gmail.com>: > Hi Gaggery, > > Thanks for the reply. > Sori for the miss understanding. init.rc won't work I guess. I want > some thing done at the kernel level(scheduler) I mean like telling the > scheduler about a process and the scheduler adding it to the red-black > tree of the CFS. > > Regards, > Kanishka > On 4/23/12, Tsai Gaggery <gaggery.t...@gmail.com> wrote: >> Hi DK, >> >> I said Android "DOES NOT" has its own scheduler, it relies on the >> Linux kernel to do process scheduling. I am not sure why you want to >> add a process before user starts the process. But, if you just want to >> execute a process before other user's application, you may modify the >> init.rc or init.MACHINE_NAME.rc to achieve it. >> >> regards, >> Gaggery >> >> 2012/4/24 DK <kanishka...@gmail.com>: >>> Thanks Gaggery, >>> >>> U mean Android has its own scheduler? Do you know how to add a process >>> to the CFS scheduler(rbtree). I mean if a user starts a process it >>> will be automatically added, but want to add it before the user starts >>> the process. >>> >>> Regards, >>> Kanishka >>> On Apr 23, 8:07 pm, Tsai Gaggery <gaggery.t...@gmail.com> wrote: >>>> I thinkandroidhas no its ownscheduler. It relies on Linux kernel to >>>> do the process scheduling. Currently, the default Linuxscheduleris >>>> CFS. >>>> >>>> 2012/4/23 DK <kanishka...@gmail.com>: >>>> >>>> >Androidscheduleris using the Completely Fair Scheduling(CFS) right? >>>> > I would like to know how to add a process (application) to the rbtree >>>> > (the runqueue)? I would like to know how this can be done, before the >>>> > user starting that process. >>>> >>>> > -- >>>> > unsubscribe:android-kernel+unsubscr...@googlegroups.com >>>> > website:http://groups.google.com/group/android-kernel >>>> >>>> -- >>>> Regards, >>>> Gaggery >>> >>> -- >>> unsubscribe: android-kernel+unsubscr...@googlegroups.com >>> website: http://groups.google.com/group/android-kernel >> >> >> >> -- >> Regards, >> Gaggery >> >> -- >> unsubscribe: android-kernel+unsubscr...@googlegroups.com >> website: http://groups.google.com/group/android-kernel > > -- > unsubscribe: android-kernel+unsubscr...@googlegroups.com > website: http://groups.google.com/group/android-kernel -- Regards, Gaggery -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
