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Mac Pro 2013 polyphony problem

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Mac Pro 2013 polyphony problem

Postby jhpinder » Sat Jun 09, 2018 11:32 am

I'm having a slight problem with a new Mac Pro 2013. Specs and settings:
Xeon E5 3.7GHz 4 cores, 16GB RAM, MOTU 24ao, buffer size 1024, 2 channels
I can't seem to get more than 2000 pipes on the polyphony testing organ 4GB. I would expect that computer to perform much better than my old Mac Pro from 2006 (8 core Xeon X5355 2.66GHz, 32GB RAM), which gets about 11000 pipes using the same exact test scenario.

What gives here? Might it have something to do with AVX support?
jhpinder
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Re: Mac Pro 2013 polyphony problem

Postby organtechnology » Sat Jun 09, 2018 12:08 pm

jhpinder wrote:I'm having a slight problem with a new Mac Pro 2013. Specs and settings:
Xeon E5 3.7GHz 4 cores, 16GB RAM, MOTU 24ao, buffer size 1024, 2 channels
I can't seem to get more than 2000 pipes on the polyphony testing organ 4GB. I would expect that computer to perform much better than my old Mac Pro from 2006 (8 core Xeon X5355 2.66GHz, 32GB RAM), which gets about 11000 pipes using the same exact test scenario.

What gives here? Might it have something to do with AVX support?


Hi,

Since you did not give the exact number of the processor (Xeon E5-xxxxx) I can not tell which of the 4 core processors you are using. However about half of the ones listed were in the 2GHz operating speed and had no Hyperthreading i.e 4 cores, 4 threads. If you have one of those processors, it would appear it would run much more slowly than the 8 core, 16 thread 2.66 GHz processor.

Thomas
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Re: Mac Pro 2013 polyphony problem

Postby jhpinder » Sat Jun 09, 2018 1:09 pm

organtechnology wrote:
Hi,

Since you did not give the exact number of the processor (Xeon E5-xxxxx) I can not tell which of the 4 core processors you are using. However about half of the ones listed were in the 2GHz operating speed and had no Hyperthreading i.e 4 cores, 4 threads. If you have one of those processors, it would appear it would run much more slowly than the 8 core, 16 thread 2.66 GHz processor.

Thomas

The processor is the following:
Intel Xeon E5-1620v2 3.7 GHz 4 core
Computer: ME253LL/A (Late 2013)

Got it from https://eshop.macsales.com/item/Apple/GA4GS3HXXX0XI/

Thanks for your help,
James
jhpinder
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Re: Mac Pro 2013 polyphony problem

Postby organtechnology » Sun Jun 10, 2018 2:10 am

jhpinder wrote:
organtechnology wrote:
Hi,

Since you did not give the exact number of the processor (Xeon E5-xxxxx) I can not tell which of the 4 core processors you are using. However about half of the ones listed were in the 2GHz operating speed and had no Hyperthreading i.e 4 cores, 4 threads. If you have one of those processors, it would appear it would run much more slowly than the 8 core, 16 thread 2.66 GHz processor.

Thomas

The processor is the following:
Intel Xeon E5-1620v2 3.7 GHz 4 core
Computer: ME253LL/A (Late 2013)

Got it from https://eshop.macsales.com/item/Apple/GA4GS3HXXX0XI/

Thanks for your help,
James


Sure looks like the newer one should be faster (i.e. more polyphony).
Complete VPO systems powered by Hauptwerk™. Real Wood Consoles, PC or MAC Computer Sound Modules, Audio for Home or Church.
info (at) organtechnology.com http://www.organtechnology.com

Authorized Hauptwerk Dealer; Milan Digital Audio Dealer..
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Joined: Sun Aug 02, 2009 5:58 pm
Location: DFW, TX USA


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