[LAU] Balance between performance and noise

[rosea.grammostola]

On 01/29/2011 03:00 PM, Robin Gareus wrote:
> On 01/29/2011 12:49 PM, rosea.grammostola wrote:
>    
>> On 12/09/2010 09:10 PM, Robin Gareus wrote:
>>      
>>> On 12/09/2010 06:39 PM, rosea.grammostola wrote:
>>>
>>>        
>>>> On 12/09/2010 06:35 PM, Robin Gareus wrote:
>>>>
>>>>          
>>>>> On 11/27/10 13:11, Arnold Krille wrote:
>>>>>
>>>>>
>>>>>            
>>>>>> Set ther cpu-governor to performance (so it doesn't switch
>>>>>> frequencies which
>>>>>> produces xruns) but reduce the maximum allowed frequency.
>>>>>>
>>>>>>
>>>>>>              
>>>>> what kernel are you running?
>>>>>
>>>>>
>>>>>            
>>>>
>>>>          
>>>>>     2.6.33.7-rt29
>>>>>
>>>>>
>>>>>            
>>>> That one ^
>>>>
>>>> You tested it with yoshimi, hammond or other heavy patches? Foo-yc20 ?
>>>>
>>>>          
>>> different toolset here, but I can go from naught to 16 jconvolvers,
>>> csound, fluidsynth, ardour&   jamin in a few seconds. causing the CPU
>>> usage to jump up and change freq w/o x-runs.
>>>
>>> ..what does cause problems here is FSBus frequency scaling, I've
>>> disabled that in the BIOS.
>>>
>>>        
>> @Robin, Which version of JACK do you use?
>>
>> \r
>>      
> jackdmp 1.9.6~dfsg.1-2 from debian/testing
>
> though I'm experimenting/testing with tschack (git) and jack1 (svn) from
> time to time: it does not make a difference.
>    
I was asking cause I did a short test with Jack1 svn this morning and I 
didn't got xruns with yoshimi and the hammon patch. Yoshimi zombified 3 
times though, probably because of asking to much from my cpu. The mp 
support of Jack2 seems to be an advantage when it comes to cpu load.

\r