[PD] pd eating cpu on os x

marius schebella marius.schebella at gmail.com
Tue Apr 8 23:45:04 CEST 2008


Thomas Grill wrote:
> Hi Marius,
> you can use shark to investigate the reason for this.
> On my G4 minimac a _lot_ of time is spent in coreaudio and the driver of 
> the audio interface.
> gr~~~
> 
> Am 08.04.2008 um 22:57 schrieb marius schebella:
> 
>> Hi,
>> I forgot why exactly Pd was eating 32% of my cpu without doing anything
>> (right after starting, only the pd window). was this because of some
>> quicktime or itunes stuff? how can I turn that off.
>> marius.
>>
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> 

thanks thomas,
here's the first 20 processes, is there anything that should worry me?
marius.

	14.7%	14.7%	mach_kernel	ml_set_interrupts_enabled	
	12.3%	12.3%	AudioToolbox 
Resampler2::ConvertAltivec_SmallIntegerRatio(float*, float*, unsigned 
long, int)	
	6.1%	6.1%	com.apple.driver.AppleHDA	SInt16ToFloat32	
	5.0%	5.0%	com.apple.driver.DspFuncLib	DspFuncOrgEQ::_EQBoth(float*, 
float*, unsigned long, unsigned long)	
	3.5%	3.5%	mach_kernel	lo_mach_scall	
	1.9%	1.9%	com.apple.driver.DspFuncLib	DspFuncVolume::process(unsigned 
long, unsigned long)	
	1.4%	1.4%	mach_kernel	mutex_lock	
	1.2%	1.2%	CoreAudio	IOA_Time::GetCurrentTime(AudioTimeStamp&) const	
	1.2%	1.2%	mach_kernel	lo_alltraps	
	1.1%	1.1%	IOKit	iokit_user_client_trap	
	1.1%	1.1%	commpage [libSystem.B.dylib]	__spin_lock	
	1.1%	1.1%	CoreAudio	AUGenericOutputEntry	
	1.0%	1.0%	libSystem.B.dylib	semaphore_timedwait_signal_trap	
	0.9%	0.9%	libSystem.B.dylib	semaphore_wait_trap	
	0.9%	0.9%	libSystem.B.dylib	_pthread_cond_wait	
	0.9%	0.9%	commpage [libSystem.B.dylib]	__nanotime	
	0.9%	0.9%	mach_kernel	mutex_unlock	
	0.8%	0.8%	commpage [libSystem.B.dylib]	__memcpy	
	0.7%	0.7%	mach_kernel	lck_mtx_lock	
	0.7%	0.7%	AudioToolbox	Resampler2::PushConvert(float*, float*, float*, 
float*, unsigned long&, unsigned long&, unsigned long, unsigned long)	





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