linux-kernel - Re: One last tweak for perfection.

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Message-ID: <50F6B8C3.9060500@paradoxuncreated.com>
Date:	Wed, 16 Jan 2013 15:27:15 +0100
From:	Ove Karlsen <ove.karlsen@...adoxuncreated.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: One last tweak for perfection.

On 1/16/2013 3:25 PM, Ove Karlsen wrote:
> On 1/16/2013 3:02 PM, Ove Karlsen wrote:
>> What kernelthreads _needs_ to run? So I can put them on max pri 
>> renice, along with reniced X and app. And everything else on idle 
>> priority. So to make the app run at max efficiency, and not be 
>> starved by kernelthreads waiting. (Or any other consideration, for 
>> giving maximal cpu to app. Even small tweaks.)
>>
>> To read my research so far, (and I have done much, about 2 years of 
>> tweakin´ on and off.) Please see 
>> http://paradoxuncreated.com/Blog/wordpress/?p=2268
>>
>> Main points, no highres timer, 90hz timer, + a lot of smaller tweaks. 
>> This makes an amazing linux-desktop, for gaming, video and audio. The 
>> popular computer for everyman. Also boosts performance, for 
>> resource-constrained systems.
>>
>> For more advanced hacking, one could also get in there, and make 
>> several HZ timers, extremely low ones, for the components who only 
>> require that, and 90hz for video-components, for instance (low 
>> video/frame jitter), and higher if anything should require that.
>>
>> Also system-wide, software should be synced to hz, if required for 
>> lowest jitter, such as animations and videoplayers, and videoplayers 
>> automatically change refresh rate to a multiple of video framerate.
>>
>> Peace Be With You.
> PS: I forgot the realtime sincs of drivers. HZ is really not an issue 
> to debate for me, 90 hz is sufficient, and only to userspace, right? 
> So yea, forget the talk on HZ.
>
> Peace Be With You.
And "synced to hz" with regards to video, is the screen hz ofcourse, not 
kernel.
Peace Be With You.
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