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Re: Garage Band performance with AU
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Re: Garage Band performance with AU


  • Subject: Re: Garage Band performance with AU
  • From: Glenn Olander <email@hidden>
  • Date: Tue, 18 May 2004 14:27:15 -0700

I only did a quick check with top. I was just wondering if anyone has already investigated this and determined if the cpu usage is in low-priority threads that don't affect playback performance? If not, I'll take a closer look.

- Glenn

On Tuesday, May 18, 2004, at 01:48 PM, Markus Fritze wrote:

fyi, I'm using Logic 6.3.3 with a 128 sample buffer size. Garage Band uses 256. Playing a few Zebra notes in Logic uses about 15% of the cpu for me. Doing the same thing in Garage Band 1.1 uses about 50%.

Ehm, stupid question: how do you measure the CPU load? Hopefully not via top, etc. The best thing is probably finding the maximum number of instances till the overload case, because all standard tools just measure the sum of all threads (either real-time (= audio and MIDI) and non-real-time (like graphics, which is probably higher in GB, but not important for the real-time performance))

Another thing: it is important what track is selected, because it can change the CPU load (in Logic and GB)


Markus
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References: 
 >Re: Garage Band performance with AU (From: Markus Fritze <email@hidden>)

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