[sc-users] Bad leopard performance? Or something else?

[Josh Parmenter]

Does anybody out there have a 2.4 GHz Core2Duo with Tiger on it? If a  
number of people really think there are differences, we should try and  
bench mark things. Let me know off list and we can run some tests...

Josh

On Apr 20, 2008, at 7:02 PM, Batuhan Bozkurt wrote:

> Ok, he says that turning airport off changes nothing for him(in  
> terms of
> load), and the reported cpu usage of supercollider is the same with  
> the
> one reported by activity monitor(scsynth process), both around 80%. So
> SC is reporting correctly I think.
>
> BB
>
> Batuhan Bozkurt wrote:
>> I've totally missed the airport issue since I'm using tiger on a
>> (ahem)hackintosh right now(without airport off course). I'll inform  
>> my
>> friend, so he will try by disabling airport and I'm going to report
>> back. And if there is a huge difference between activity monitor  
>> report
>> and scmeter, I'll ask and try to file a bug report as Scott  
>> requested.
>>
>> Thanks.
>> BB
>>
>>
>> Josh Parmenter wrote:
>>
>>> And... if you built your own SCs, watch out for the difference  
>>> between
>>> Development and Deployment builds. If you are using the same build,
>>> then this shouldn't matter (just thought I would mention it).
>>>
>>> In general, I find performance with Leopard the same as Tiger on the
>>> same laptop (as long as AirPort is off).
>>>
>>> Josh
>>>
>>> On Apr 19, 2008, at 6:27 PM, felix wrote:
>>>
>>>
>>>> did you turn airport off ?  it depends which os update you are
>>>> running.  the newer ones are broken.
>>>>
>>>>
>>>>
>>>>
>>>> On Sat, Apr 19, 2008 at 11:46 PM, Batuhan Bozkurt
>>>> <batuhan at batuhanbozkurt.com <mailto:batuhan at batuhanbozkurt.com>>  
>>>> wrote:
>>>>
>>>>    We were sharing some code with a friend of mine, we observed  
>>>> some
>>>>    performance differences so I wanted to ask. He is using Leopard
>>>>    on a new
>>>>    macbook pro c2duo running at 2.4ghz(santa rosa I believe), and  
>>>> my
>>>>    laptop
>>>>    is running tiger 10.4.8 c2duo 2ghz. He also has 2gigs of ram and
>>>>    I have 1gb.
>>>>
>>>>    We tested with the following code:
>>>>
>>>>    (
>>>>    SynthDef("testing", { var sinebank = Array.fill(300,
>>>>    { Pan2.ar(Pulse.ar(LFNoise1.kr(0.005).range(1, 16000),
>>>>    LFNoise1.kr(2).range(0.001, 0.99), 300.reciprocal),
>>>>    LFNoise1.kr(0.5)); });
>>>>                                  var sum = Mix.ar(sinebank);
>>>>                                  Out.ar([0, 1], sum); } ).load(s);
>>>>    )
>>>>
>>>>
>>>>    Synth.new("testing");
>>>>
>>>>    This runs with 3000 UGens on server. We both have the same sound
>>>>    card,
>>>>    which is m-audio fasttrack pro. Running with coreudio drivers,
>>>>    512samples buffer, 44.1kHz sampling rate.
>>>>
>>>>    On my computer, this piece of code reports 51% avg and peak  
>>>> cpu load.
>>>>    But on his faster computer running leopard, sc reports 80% load.
>>>>
>>>>    I'm not sure if it is right to ask for your individual results  
>>>> on
>>>>    this
>>>>    mailing list, but maybe someone has an idea on this issue. Why  
>>>> is
>>>>    there
>>>>    such a huge difference in cpu load?
>>>>
>>>>    Thanks
>>>>    _______________________________________________
>>>>    sc-users mailing list
>>>>    sc-users at create.ucsb.edu <mailto:sc-users at create.ucsb.edu>
>>>>    http://lists.create.ucsb.edu/mailman/listinfo/sc-users
>>>>
>>>>
>>>>
>>>>
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>>> ******************************************
>>>
>>> /* Joshua D. Parmenter
>>>
>>> http://www.realizedsound.net/josh/
>>>
>>>
>>> “Every composer – at all times and in all cases – gives his own
>>> interpretation of how modern society is structured: whether actively
>>> or passively, consciously or unconsciously, he makes choices in this
>>> regard. He may be conservative or he may subject himself to  
>>> continual
>>> renewal; or he may strive for a revolutionary, historical or social
>>> palingenesis." - Luigi Nono
>>>
>>> */
>>>
>>> ------------------------------------------------------------------------
>>>
>>> _______________________________________________
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>>> http://lists.create.ucsb.edu/mailman/listinfo/sc-users
>>>
>>>
>>
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******************************************
/* Joshua D. Parmenter
http://www.realizedsound.net/josh/

“Every composer – at all times and in all cases – gives his own  
interpretation of how modern society is structured: whether actively  
or passively, consciously or unconsciously, he makes choices in this  
regard. He may be conservative or he may subject himself to continual  
renewal; or he may strive for a revolutionary, historical or social  
palingenesis." - Luigi Nono
*/