Re: A question about QuickQuiz 5.46

[Hao Lee <haolee.swjtu@gmail.com>]

On Thu, May 18, 2023 at 10:50:51AM +0900, Akira Yokosawa wrote:
> Hi,
> 
> On Wed, 17 May 2023 12:01:10 +0000, Hao Lee wrote:
> > Hi, Paul
> > 
> > I noticed that QuickQuiz 5.46 is causing confusion due to the fact that
> > balance_count() and flush_local_count() are both located within the
> > slowpath and are called sequentially. As a result, it is impossible for
> > them to compete for the counterandmax thread-local variable.
> 
> Right.
> And that's exactly what is mentioned in the answer to the quiz.
> 
> I guess it confused you because you didn't expect such an easy one,
> no ? :-)

In fact I'm confused about the question description.
I believe that this quiz should focus on the concurrency of global
variables, rather than on the concurrency of the atomic variable
`counterandmax`, which is currently the main focus of the description.

> 
>         Thanks, Akira
> 
> >                                                               Therefore,
> > I believe that this quiz may be referring to the global variables
> > globalcount and globalreserve.
> > 
> > Thanks,
> > Hao Lee