Re: [PATCH 1/2 v3][RFC] trace: profile likely and unlikelyannotations

From: Theodore Tso
Date: Thu Oct 30 2008 - 10:56:01 EST


On Thu, Oct 30, 2008 at 03:32:39PM +0100, Jörn Engel wrote:
> On Wed, 29 October 2008 18:39:55 -0400, Steven Rostedt wrote:
> >
> > 69768 61064 87 __switch_to process_64.c 624
> > 15557 115251 100 __switch_to process_64.c 594
> > 15555 115227 100 __switch_to process_64.c 590
>
> I may be out of school for a while, but that math sure looks odd.
>
> > + if (p->correct) {
> > + percent = p->incorrect * 100;
> > + percent /= p->correct;
> percent /= p->correct + p->incorect;

And once you do the above fix, I don't think what is below is
necessary any more. :-)

> > + /* No need to see huge numbers */
> > + if (percent > 100)
> > + percent = 100;

I would also calculate the percent correct rather than the percent
incorrect, on the general theory that 100% good, 0% bad is easier for
my little brain to understand, but that's just a minor thing...

- Ted
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