Re: Minimal jitter = good desktop.

[Uwaysi Bin Kareem]

In the context of os-jitter, delay/latency is measured as jitter.

Peace Be With You.

On Sat, 06 Oct 2012 03:06:57 +0200, <david@xxxxxxx> wrote:

> less jitter != less latency
>
> you could (in theory) eliminate jitter by delaying every keypress  
> processed for exactly 1 second by having the code paths that process  
> keypresses faster insert delays before implementing the results.
>
> that would result in zero jitter, but horrific latency.
>
> latency is how long it takes to do something, jitter is how much the  
> latency varies.
>
> normally, if you optimize for one you make the other worse.
>
> If you optimize for latency, you try to finish everything as soon as you  
> can. Since some things take longer than others, jitter increases.
>
> David Lang
>
> On Sat, 6 Oct 2012, Uwaysi Bin Kareem wrote:
>
> > Reducing jitter seems central for many things.
> > First of all keypresses seem faster. (less jitter = less latency).
> > Doom 3 and similar jittersensitive OpenGL applications run smoothly,  
> > and better than windows. Doom 3 was also my main app to get running  
> > well, and measuring jitter in the signalpath of OpenGL improved the  
> > overall computing experience.
> >
> > Even youtube videos who are not synced to refresh, with a refresh of  
> > 60, and a videofps of 30, runs quite well.  
> > http://paradoxuncreated.com/Blog/wordpress/?p=3221
> >
> > System is responsive, and I have only had one problem, and that is  
> > packing seems not to work at the moment.
> >
> > For a fast test in Ubuntu, try  
> > http://paradoxuncreated.com/Blog/wordpress/?p=2268
> >
> > Definately a recommended config on the desktop.
> >
> > Peace Be With You.
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