On Wed, Mar 22, 2017 at 09:25:02AM -0700, Joel Fernandes wrote:
> On Wed, Mar 22, 2017 at 7:18 AM, Peter Zijlstra <[email protected]> wrote:
> > On Fri, Mar 10, 2017 at 12:47:43PM -0800, Joel Fernandes wrote:
> >> This patch rewrites comments related task priorities and CPU usage
> >> along with an example to show how it works.
> >
> > To what purpose? Bigger word count?
>
> The intention is to improve the comments to make it more
> understandable (the weight calculations, factor of 1.25 etc).
>
> On reading through the comments the first time, I felt they could be
> improved. Is your concern more about the addition of an example
> increasing the word-count? Perhaps you'd rather this be added to
> Documentation/ instead?
It might just be verbiage; I sometimes have trouble condensing text.
That is; some people need repetition, I get stuck trying to figure out
if its saying the same or not.
In any case; if you want to clarify where the 1.25 comes from, maybe do
an abstract example, instead of an explicit one?
-10% = .9, +10% = 1.1 -> 1.1/.9 = 1.(2) ~ 1.25
Or, starting with the weight thing:
.45 = wa / (wa+wb) -> .45 (wa+wb) = wa ->
.45wa + .45wb = wa ->
.45wb = .55wa ->
wb/wa = .55/.45 = 1.(2) ~ 1.25
That's actually simpler to follow no?
Now IIRC the whole thing is backwards anyway, we started with 1.25 and
got the ~10% from there.
