Changing the default scheduler

[Renato Utsch]

The idea is to patch the kernel. I am trying to discover how I can set the
default scheduler for new processes, so that I can test the behavior of any
schedulers that I may write. Do you have any ideas?

Em Seg, 23 de mai de 2016 10:05 AM, Mulyadi Santosa <
mulyadi.santosa at gmail.com> escreveu:

> On Fri, May 20, 2016 at 6:51 AM, Renato Utsch <renatoutsch at gmail.com>
> wrote:
>
>> Hello,
>>
>> I am a new developer trying to learn how to tinker with the kernel. I
>> searched on the internet but couldn't find much info about this (and
>> couldn't find any info up to date).
>>
>> My question is, how does the kernel decide which is the default scheduler
>> that all processes start with? I can change the scheduler of a process by
>> sched_setscheduler(), but how do I change *all* processes from using the
>> CFS scheduler to, for example, the RR scheduler?
>>
>> Sorry if this is too basic, but I don't know where to search for this. If
>> you guys could point me places where I can learn more about this, I would
>> be grateful.
>>
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>>
>>
> Hi..
>
> putting aside scheduler plugins module that once exist and maintained (not
> sure now), I guess the only way to switch to new scheduler is to patch your
> kernel first (if you haven't do that) with scheduler patch such as Con
> Kolivas BFS and reboot to that new kernel.
>
>
> --
> regards,
>
> Mulyadi Santosa
> Freelance Linux trainer and consultant
>
> blog: the-hydra.blogspot.com
> training: mulyaditraining.blogspot.com
>
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