Messages in this thread | | | Date | Tue, 27 Apr 2010 12:51:21 -0700 | From | Randy Dunlap <> | Subject | Re: [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 It is a bit outdated now, but I will update it with current information.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 ***
| |