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Re: Audio Units and OpenCL?
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Re: Audio Units and OpenCL?


  • Subject: Re: Audio Units and OpenCL?
  • From: Markus Fritze <email@hidden>
  • Date: Wed, 9 Sep 2009 08:31:52 -0700

GCD is very useful, but from what I see just not for real-time applications. And no, it doesn't necessarily come to a "halt", but it can be affected, which is what you really DON'T want in a real-time situation.


Markus

On Sep 9, 2009, at 8:28 AM, tahome izwah wrote:

Really?? Now that wouldn't make GCD very useful in practice, would it?
If everything scheduled by GCD across all CPUs comes to a halt when
you hold down the mouse on a dialog what good is it then? That sounds
a bit like a flashback to MacOS 9 times to me... or am I
misunderstanding what you are saying? (still waiting for my copy of
SL..).

--th

2009/9/9 Markus Fritze <email@hidden>:
Ehm, you know that GCD is running at the main thread level? Which can be
blocked by UI operations, etc. That doesn't seem like a wise choice for
real-time processing. OpenCL also doesn't have a threading mode, so you
tasks will be shared among all the others and your latency becomes
unpredictable.


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  • Follow-Ups:
    • Re: Audio Units and OpenCL?
      • From: tahome izwah <email@hidden>
References: 
 >Audio Units and OpenCL? (From: Mike Lemmon <email@hidden>)
 >Re: Audio Units and OpenCL? (From: Jean-Daniel Dupas <email@hidden>)
 >Re: Audio Units and OpenCL? (From: Markus Fritze <email@hidden>)
 >Re: Audio Units and OpenCL? (From: tahome izwah <email@hidden>)

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