Re: [PATCH v3 2/4] sched/fair: Make CFS bandwidth controller burstable

[Peter Zijlstra]

On Fri, Mar 12, 2021 at 09:54:33PM +0800, changhuaixin wrote:
> > On Mar 10, 2021, at 9:04 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> > There's already an #ifdef block that contains that bandwidth_slice
> > thing, see the previous hunk, so why create a new #ifdef here?
> > 
> > Also, personally I think percentages are over-represented as members of
> > Q.
> > 
> Sorry, I don't quite understand the "members of Q". Is this saying that the percentages
> are over-designed here?

You know the number groups (in order): N, Z, Q, R, C, H, O.

Percent being 1/100 is a fraction and thus part of Q (and anything
higher ofcourse).

Some people seem to think percent is magical and special. It's just a
fraction like the inifinite many others in Q. It's also a very crappy
one when we consider computers.

Basically I hate percentages, they're nothing special and often employed
where they should not be.