Re: [sc-dev] idle scsynth CPU usage

[Joshua Parmenter <joshp@xxxxxxxxxxxxxxxx>]

Following the Shark tree, this process is inside the mach_kernal  
shandler thread. Sounds pretty system oriented... but why would it  
show up that way on one Powerbook and not the other (when both are  
running the same system)?

Josh

******************************************
Joshua Parmenter
joshp@xxxxxxxxxxxxxxxx
Post-Doctoral Research Associate - Center for Digital Arts and  
Experimental Media
Raitt Hall - University of Washington
Seattle, Washington 98195

http://www.dxarts.washington.edu
http://www.realizedsound.net/josh/


On Jan 8, 2006, at 7:53 PM, Joshua Parmenter wrote:

> I also noticed in the Shark output that the function 'equalizer' is  
> highlighted in all of the them... this seems to be the CPU hog.  
> Can't find it anywhere though with a quick spotlight search... I'll  
> hunt around some more.
>
> Josh
>
> ******************************************
> Joshua Parmenter
> joshp@xxxxxxxxxxxxxxxx
> Post-Doctoral Research Associate - Center for Digital Arts and  
> Experimental Media
> Raitt Hall - University of Washington
> Seattle, Washington 98195
>
> http://www.dxarts.washington.edu
> http://www.realizedsound.net/josh/
>
>
> On Jan 8, 2006, at 7:46 PM, jonathan segel wrote:
>
> > keylargo is the internal sound chip controller on the other alu- 
> > powerbook..
> > oh wait, maybe it's not. i think "snapper" is the chip. i'm trying  
> > to remember from configs for when i installed gentoo on a  
> > powerbook. the device is Texas Instruments TAS3004.
> >
> > i was wondering if it's the same chip and controller, but now i'm  
> > gonna have to do more research to figure out what to compare it to!
> >
> > by different driver i mean something other than the internal one,  
> > like a digidesign or indigoIO or something?
> >
> >
> >
> > On Jan 8, 2006, at 7:15 PM, Joshua Parmenter wrote:
> >
> > > This is using all the internal defaults...
> > >
> > > How do I change the driver? And where would I see if it is KeyLargo?
> > >
> > > On Jan 8, 2006, at 6:19 PM, Jonathan Segel wrote:
> > >
> > > > On Jan 8, 2006, at 5:00 PM, Joshua Parmenter wrote:
> > > > > I ran Shark, and the difference came in the scsynth process,  
> > > > > under the thread CAPThread. On the old machine, this was  
> > > > > running at about 1%, on the new one, about 8%
> > > >
> > > > >  Most of this seems to be involving the  
> > > > > com.apple.driver.AppleDBDMAAudio and the  
> > > > > com.apple.iokit.IOAudioFamily libraries.
> > > >
> > > > i'm curious, is there an idle process difference also when using  
> > > > a different coreaudio driver? or is it only the Apple built-in?  
> > > > (is that still KeyLargo on these machines?)
> >
> > _______________________________________________________
> >         Jonathan Segel  --  4014 Brookdale Ave. Oakland, CA 94619
> >                 MAGNETIC -- http://www.MagneticMotorworks.com
> >
> >
> >
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