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SubjectRe: [PATCH] Psychovisually-optimized HZ setting (2.6.33.3)
On Tue, 27 Apr 2010 21:03:11 +0200 Uwaysi Bin Kareem wrote:

> This is based on the research I did with optimizing my machine for
> graphics.
> I also wrote the following article:
> http://www.paradoxuncreated.com/articles/Millennium/Millennium.html
> It is a bit outdated now, but I will update it with current information.
> The value might iterate.

Hi,

What CPU architectures or platforms did you test this on?
Were any other kernel changes needed?


> Peace Be With You,
> Uwaysi Bin Kareem.
>
>
> --- Kconfig.hzorig 2010-04-27 13:33:10.302162524 +0200
> +++ Kconfig.hz 2010-04-27 20:39:54.736959816 +0200
> @@ -45,6 +45,18 @@
> 1000 Hz is the preferred choice for desktop systems and other
> systems requiring fast interactive responses to events.
>
> + config HZ_3956
> + bool "3956 HZ"
> + help
> + 3956 Hz is nearly the highest timer interrupt rate supported in the
> kernel.
> + Graphics workstations, and OpenGL applications may benefit from this,

drop first comma.

> + since it gives the lowest framerate-jitter. The exact value 3956 is
> + psychovisually-optimized, meaning that it aims for a level of jitter,
> + percieved to be natural, and therefore non-nosiy. It is tuned for a

perceived non-noisy.

> + profile of "where the human senses register the most information".
> +
> +
> +
> endchoice
>
> config HZ
> @@ -53,6 +65,7 @@
> default 250 if HZ_250
> default 300 if HZ_300
> default 1000 if HZ_1000
> + default 3956 if HZ_3956
>
> config SCHED_HRTICK
> def_bool HIGH_RES_TIMERS && (!SMP || USE_GENERIC_SMP_HELPERS)
>
> --


---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

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