Re:hwo to improve a video decoder program's timeslice

Re:hwo to improve a video decoder program's timeslice

[Philippe De Swert]

Hi,

>  i have a video decoder program run as aplication
> and i now have change the HZ from 1000 to 100, set the decoder program
> priority as 99.

Seems you are mixing things here... The HZ change will just change the
interval of the timer tick. For some more explanations about this, look here :
http://kerneltrap.org/node/464

> if i want to the video decoder program to get more time to run, is
> there any other way to improve it ?

Maybe using nice? Try "man nice" in a terminal on your Linux box to get more
explanations about this.

Cheers,

Philippe---
Scarlet ONE -  Combine ADSL with unlimited fixed phone and save 400 euros
http://www.scarlet.be

Re:hwo to improve a video decoder program's timeslice

[Philippe De Swert]

Hi,

>  i have a video decoder program run as aplication
> and i now have change the HZ from 1000 to 100, set the decoder program
> priority as 99.

Seems you are mixing things here... The HZ change will just change the
interval of the timer tick. For some more explanations about this, look here :
http://kerneltrap.org/node/464

> if i want to the video decoder program to get more time to run, is
> there any other way to improve it ?

Maybe using nice? Try "man nice" in a terminal on your Linux box to get more
explanations about this.

Cheers,

Philippe---
Scarlet ONE -  Combine ADSL with unlimited fixed phone and save 400 euros
http://www.scarlet.be

Re: hwo to improve a video decoder program's timeslice

[zhuzhenhua]

On 12/12/06, Philippe De Swert <philippedeswert@scarlet.be> wrote:
> Hi,
>
> >  i have a video decoder program run as aplication
> > and i now have change the HZ from 1000 to 100, set the decoder program
> > priority as 99.
>
> Seems you are mixing things here... The HZ change will just change the
> interval of the timer tick. For some more explanations about this, look here :
> http://kerneltrap.org/node/464
>
> > if i want to the video decoder program to get more time to run, is
> > there any other way to improve it ?
>
> Maybe using nice? Try "man nice" in a terminal on your Linux box to get more
> explanations about this.
thanks, i have try nice already, there's not too much change.

>
> Cheers,
>
> Philippe---
> Scarlet ONE -  Combine ADSL with unlimited fixed phone and save 400 euros
> http://www.scarlet.be
>
>

Re: Re:hwo to improve a video decoder program's timeslice

[Mark.Zhan]

On Mon, 2006-12-11 at 19:10 +0100, Philippe De Swert wrote:
> Hi,
> 
> >  i have a video decoder program run as aplication
> > and i now have change the HZ from 1000 to 100, set the decoder program
> > priority as 99.
> 
> Seems you are mixing things here... The HZ change will just change the
> interval of the timer tick. For some more explanations about this, look here :
> http://kerneltrap.org/node/464

The decrement of the timer tick number definitely can increase the
execution time of application. And Disable kernel preemption also has
the same impact.

> 
> > if i want to the video decoder program to get more time to run, is
> > there any other way to improve it ?
> 
> Maybe using nice? Try "man nice" in a terminal on your Linux box to get more
> explanations about this.
> 
> Cheers,
> 
> Philippe---
> Scarlet ONE -  Combine ADSL with unlimited fixed phone and save 400 euros
> http://www.scarlet.be
> 
> 
-- 
Best Regards
Mark.Zhan
Wind River Beijing Engineer Team