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May 21, 2015 11:03 AM in response to LeChefsby Eriksimon,You have a quadcore processor with HT (HyperThreading), meaning 4 real plus 4 "virtual" is 8 CPU-cores, meaning when you totally max out your Mac it'll be at 800 % CPU.
Also, the refresh rate of Activity Monitors' CPU-meters is slower than that of Logics', so AM may miss CPU-peaks Logic doesn't.
Why your session is behaving as you describe is unclear, because I have no idea how it is set up and what plugins are in use in it. An all-encompassing screenshot of your mixer may help, as well as as screenshot of your audio preferences device settings (Logic Pro>Preferences>Audio>Devices>Core Audio)
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May 23, 2015 6:27 AM in response to LeChefsby LeChefs,The input and output look like this because I'm travelling right now. Otherwise i have a TC Electronics Near Interface connected via Firewire...
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May 23, 2015 9:24 AM in response to LeChefsby Eriksimon,Well, a few things spring to mind when seeing your mixer: first, Reaktor is a CPU-guzzler, especially in Live mode (= when its' track is selected). You also have quite a few instances of Kontakt, and 3 instances of Massive (as if it's named after its' CPU-impact). I cannot accurately assess which is the bigger contributor though, since the CPU load of all these very much depends on how they're configured - but each of those can easily be configured so they can overload any CPU.
So, if they already stress the CPU when playing 0 voices, chances are you're going to see CPU-overloads pretty soon, especially since you have relatively slow CPU-cores.
You should try to find out which of these instruments are the heaviest contributors, then reduce their load by either turning off any onboard effects (especially reverbs), or by freezing the tracks.
In your Audio preferences: when mixing, there's no reason to not use the 1024 samples buffer - this alleviates CPU-pressure. Also, set the Process Buffer Range (the mixers' buffer) to Large.
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May 23, 2015 10:44 AM in response to Eriksimonby LeChefs,Thank you very much for your thorough analysis of my system. There's a lot of useful advice there. But it still nags me that i today all of a sudden was able to play that exact setup you see posted from me - with a load below 40%...




