Re: Real-time kernel thread performance and optimization

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On 12/20/2012 12:21 AM, Simon Falsig wrote:
> 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"?

I'd leave the exploration type write-up to your blog and we can link to
it. An explicit example in one of the locations above also sounds
appropriate.

Thanks,

Darren

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