Re: [GnomeMeeting-list] How to fix sound choppy on CPU load?

["Mihai T. Lazarescu" <mihai email it>]

Hi Johnny,

Mine also looks (and works) OK on low CPU usage.

I'm available to check the snapshot and to help debug the
problem.  Please let me know.

The sound card is:

    Yamaha Corporation YMF-744B [DS-1S Audio Controller] (rev 02)

on the PIII 600MHz Toshiba Tecra 8100 laptop and:

    VIA Technologies, Inc. VT8233 AC97 Audio Controller (rev 30)

on the Athlon 1GHz desktop.  However, they behave pretty much
the same.

Thanks a lot and let me know how I can help.

Mihai

On Wed, 5 Nov 2003, Johnny Strom wrote:

> Hi All
> 
> I tried to start a quite recent snapshot of GM on RH 9 with orginal
> RH kernel and everything, I did not make a call and GM did not use 100%
> CPU, it was ok as far as I could see.
> 
> I could build a new CVS snapshot of GM tonight if someone wants to test 
> it on RH 9.
> 
> Cheers Johnny
> 
> 
> Damien Sandras wrote:
> > Hi Mihai,
> > 
> > Le mer 05/11/2003 à 19:20, Mihai T. Lazarescu a écrit :
> > 
> >>It behaves the same on a PIII 600MHz using oss and an Athlon
> >>1GHz using ALSA.
> >>
> > 
> > 
> > That's not normal. I have already used GnomeMeeting on a Pentium 233 MHz
> > with 64Megs of RAM in the past. Does it only happen on high-activity?
> > 
> > 
> >>However, since the movement of the default picture sliding
> >>up and down gets choppy as well, I would exclude a sound
> >>driver problem.
> >>
> > 
> > 
> > Yes
> > 
> > 
> >>The point was that it does not even appears a shortage of
> >>CPU cycles to be the cause, since there is no perceptible
> >>improvement when giving the process the highest user-space
> >>priority.  Given this, I suspect a kernel-space problem,
> >>hence NPTL glitch came to mind.
> >>
> > 
> > 
> > We have other RedHat 9 users who do not have problems.
> > I wonder :
> > - when it happens, does GnomeMeeting take 100% of the CPU?
> > - what is your load average when it happens?
> > - are things normal on normal CPU load?
> > 
> > 
> > Johnny, in CC, will try to reproduce your problem on his RedHat 9.
> > 
> > 
> >>Thanks,
> >>
> >>Mihai
> >>
> >>On Wed, 5 Nov 2003, Damien Sandras wrote:
> >>
> >>
> >>>Le mer 05/11/2003 à 15:18, Mihai T. Lazarescu a écrit :
> >>>
> >>>>Hello,
> >>>>
> >>>>First of all, great tool Gnomemeeting!!
> >>>>
> >>>>I'm a bit out of luck trying to reduce audio choppiness (in
> >>>>and out) when there is some CPU load.  I tried to raise the
> >>>>priority of the gnomemeeting process up to highest available
> >>>>but the behavior don't change at all.  Even the movement of
> >>>>the default picture sliding up and down is choppy as well,
> >>>>regardless of the priority of the process.
> >>>>
> >>>>I use version 0.98.5 on RedHat Linux 9. Can this be related
> >>>>to NPTL-moved-to-kernel bug?  Any hints highly appreciated!
> >>>>
> >>>
> >>>What's your CPU type?
> >>>Chopiness in the sound when the CPU is active is due to the driver.
> >>>Perhaps you could try ALSA, but I can't promise it will be better.
> >>>However, it should be ok if you have a modern processor and you
> >>>shouldn't have that kind of problems. (I have no problem on a P3 500 SMP
> >>>compiling for example)
> >>>
> >>
> >>_______________________________________________
> >>GnomeMeeting-list mailing list
> >>GnomeMeeting-list gnome org
> >>http://mail.gnome.org/mailman/listinfo/gnomemeeting-list
> 
> 
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