[PATCH 2/2] Added weak and strong APA definition

[Richi Dubey]

Sorry, Please ignore this patch. I made unneeded changes in other
parts of the glossary.

On Tue, Jun 2, 2020 at 7:16 PM Richi Dubey <richidubey at gmail.com> wrote:
>
> ---
>  user/glossary/index.rst | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
>
> diff --git a/user/glossary/index.rst b/user/glossary/index.rst
> index 5648b39..082483d 100644
> --- a/user/glossary/index.rst
> +++ b/user/glossary/index.rst
> @@ -16,6 +16,22 @@ Glossary
>
>    APA
>      Arbitrary Processor Affinity
> +
> +    Weak APA: Invariant for this model states that for any backlogged task(task not
> +    yet assigned a processor), all the processors in its affinity mask are
> +    occupied by higher-priority tasks. That is, there is no candidate
> +    task for preemption scheduled on any of the processors(in a backlogged
> +    task's affinity mask) on which the backlogged task may execute. Linux's
> +    push-pull scheduling is an example of weak-APA scheduling.
> +
> +    Strong APA: In this model, on the arrival of a task, every task reachable
> +    from the newly arrived task is checked to see if an existing task can
> +    be shifted(or deallocated its processor) and newly arrived task can take
> +    its place if the newly arrived task has a higher priority. Similar analysis is
> +    done when a task finishes its execution.
> +
> +    Learn more at: https://people.mpi-sws.org/~bbb/papers/talks/rtss14f.pdf
> +
>
>    API
>      Application Programming Interface
> @@ -145,4 +161,4 @@ Glossary
>      Waf build system.  For more information see http://www.waf.io/
>
>    YAFFS2
> -    `Yet Another Flash File System version 2 <https://git.rtems.org/sebh/rtems-yaffs2.git>`_
> +    `Yet Another Flash File System version 2 <https://git.rtems.org/sebh/rtems-yaffs2.git>
> --
> 2.17.1
>