I have MainStage 2 and Lion running on my MacBook Pro . . . plenty of memory. It's a newer MBP. Anyway, I still get the red CPU spikes after I installed Pianoteq recently. I noticed in Activity monitor I max out at 50-60% CPU usage. However, in MainStage I'm way in the red.
Is this normal?
I am having CPU spikes as well.
I am running Mainstage 2.2.1 on Lion, on a new Mac Mini Server, i7 with 2 SSD and 16 Gigs of RAM. The spikes, as far as I can tell, are specific to Kontakt 4, and more specifically related to use of the sustain pedal. Even in an otherwise empty concert, running Galaxy Vintage D piano in Kontakt, where the CPU usage is around 20%, occasionally when lifting the sustain pedal, or less frequently while depressing it while playing, the CPU will peg, and I will get pops.
This does NOT happen if I run Kontakt as a standalone app. It is absolutely specific to Mainstage. Even running Galaxy with all its functions (harmonics, pedal noise, etc) turned off, the problem still occurs.
I do not get this using the same controller (VAX77) with Ivory, or with any software pianos (I own a few from Sampletekk) loaded into EXS24. Those same pianos loaded into Kontakt will glitch on me.
So Native Instruments might claim that it is not on their end, since standalone Kontakt works fine. And Apple may claim that it is not on their end, since other instruments work fine. All I know is that Kontakt does not work glitch free at all for me when playing piano and using the sustain pedal within Mainstage. I am going to try to figure out how to run standalone Kontakt as an external instrument and see if that kludges a fix for me, as this functionality is quite important to what I do.
I had the same problems.. i had macbookpro core 2 2.4 GHz, i replaced it with an new Macbook pro Core I7, 2,9GHz 8GByte Ram, and now it works fine.
Beethree - Did you ever come up with an acceptable workaround for the Mainstage spikes?
Yep, that's exactly what I had to do. Nice huh? had to spend another 2500 to fix the problem.
Your Welcome Apple.
I had the same issue,
I solved coming back to Snow Leopard and mainstage 2.1.3
just from time machine
cheaper solution 🙂
no spike anymore
disabling multi-processor support and memory-server in kontakt helps avoiding cpu-spikes, at least with my system (macmini with rme-babyface, sample-buffer at 128)
Mainstage CPU spikes
