Re: [PATCH rfc 0/6] Scheduler BPF

[Yafang Shao]

Hi Roman,

Scheduler BPF is a great idea.
Thanks for the work.

Scheduler BPF won’t be a small feature,  I think we’d better give a
summary of possible hooks it may add first.
We must have a *basic rule* to control what it will tend to be to
avoid adding BPF hooks here and there.
I haven’t found a clear rule yet, but maybe we can learn it from
netfilter, which has 5 basic hooks.
Regarding the scheduler BPF hooks, some possible basic hooks may be:
  - Hook for Enqueue
  - Hook for Dequeue
  - Hook for Put Prev Task
   - Hook for Set Next Task


> An example of an userspace part, which loads some simple hooks is available
> here [3]. It's very simple, provided only to simplify playing with the provided
> kernel patches.
>

You’d better add this userspace code into samples/bpf/.


[Some error occurs in my mail client, so I resend it]


--
Thanks
Yafang