RE: Real-time kernel thread performance and optimization

[Simon Falsig <simon@newtec.dk>]

On 12/20/2012 01:12 AM, Darren Hart wrote:
> On 12/17/2012 02:18 PM, Frank Rowand wrote:
> > On 12/11/12 06:30, Simon Falsig wrote:
> >
> > < snip >
> >
> >>>> Once I get this finished up, I'll be happy to do a complete
> >>>> write-up of the timer-thread code, if anyone is interested. I
> >>>> remember looking for something similar (but without success), when
> >>>> I wrote the code earlier this year.
> >>>
> >>> It would be very useful to add your results to the wiki.
> >>>
> >>> -Frank
> >>
> >> Cool - is there any particular place it should go? A how-to, FAQ
> >> entry, etc? Just so I know how to do the write-up...
> >
> > https://rt.wiki.kernel.org/index.php/Main_Page would be my default
> > suggestion.  I'm not quite sure where on the wiki would be good
> > though.  Maybe under "Tips and Techniques"?
> >
> > I added the rtwiki maintainers to the cc: list.
>
> I don't have all the context, but this sounds a bit more like something
for
> linux/Documentation (possibly for the preempt-rt patch set). If not, the
> Documentation section on the wiki is a possibility.
> --
> Darren Hart
> Intel Open Source Technology Center
> Yocto Project - Technical Lead - Linux Kernel

As I see it, the write-up could be done in two ways - 1) as a simple code
example of a real-time loop in a kernel module, 2) as a blog-like post of
the process I went through, investigating the performance, and optimizing
my code.

In the case of 1), I guess it could be added to
https://rt.wiki.kernel.org/index.php/RT_PREEMPT_HOWTO, as a kernel version
of the realtime example, or possibly to
https://rt.wiki.kernel.org/index.php/HOWTO:_Build_an_RT-application under
"Building Device Drivers"? In the case of 2) though, it could maybe be on
its own page under "Tips and techniques"?

Best regards,
Simon Falsig