Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt

Lee Revell
2005-07-15T17:01:51Z

On Thu, 2005-07-14 at 22:54 -0600, Zwane Mwaikambo wrote:
> On Fri, 15 Jul 2005, Lee Revell wrote:
>
> > On Fri, 2005-07-15 at 14:08 +1000, Con Kolivas wrote:
> > > Audio did show slightly larger max latencies but nothing that would be of
> > > significance.
> > >
> > > On video, maximum latencies are only slightly larger at HZ 250, all the
> > > desired cpu was achieved, but the average latency and number of missed
> > > deadlines was significantly higher.
> >
> > Because audio timing is driven by the soundcard interrupt while video,
> > like MIDI, relies heavily on timers.
>
> In interbench it's not driven by a soundcard interrupt.
>
>

OK. Con, any idea why video is so much more affected than audio?

Lee