From: "Mark.Zhan" <rongkai.zhan@windriver.com>
To: Philippe De Swert <philippedeswert@scarlet.be>
Cc: "zzh.hust" <zzh.hust@gmail.com>, linux-mips <linux-mips@linux-mips.org>
Subject: Re: Re:hwo to improve a video decoder program's timeslice
Date: Tue, 12 Dec 2006 21:23:17 -0500 [thread overview]
Message-ID: <1165976597.5831.13.camel@localhost.wrs.com> (raw)
In-Reply-To: <JA4FU5$15B25B9E0AEC49C3D47C4ABD5469CF70@scarlet.be>
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
prev parent reply other threads:[~2006-12-13 2:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-11 18:10 Re:hwo to improve a video decoder program's timeslice Philippe De Swert
2006-12-11 18:10 ` Philippe De Swert
2006-12-12 0:58 ` hwo " zhuzhenhua
2006-12-13 2:23 ` Mark.Zhan [this message]
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