Hello,

I have a 2700k i7 processor, which I never have issues with, but in Sonar it seems like the first core is being taxed and causes the playback to glitch.
 
Is there any to spread the work over all 8 cores?


Thank You!

Does core 1 spike with no plugins loaded at all, or do you have some "look ahead" plugins loaded when it does this ?

Only tweak I know of for this is "ThreadSchedulingModel" in the Sonar Configuration file
 . . . for a Quad core I believe most have had best results with a setting of 2

Which update are you using? I had a similar problem and the latest, Manchester, has fixed it.  

noynekker
Does core 1 spike with no plugins loaded at all, or do you have some "look ahead" plugins loaded when it does this ?

no, it is quiet without plugins...  
 
thing is, I'm not using any plugins really, it's mostly soft-synths, but I only have about 5 loaded right now.  

John
Which update are you using? I had a similar problem and the latest, Manchester, has fixed it.  

Hi there, I am on the latest and greatest

You could try archiving the soft synth tracks one by one to see which one(s) may be causing core 1 to spike.

noynekker
You could try archiving the soft synth tracks one by one to see which one(s) may be causing core 1 to spike.

OK I will try that later.   Thank you.
 
Is there a way to get the load to spread against all 8 cores once I find the offending softsynth?

SilverBlueMedallion

noynekker
You could try archiving the soft synth tracks one by one to see which one(s) may be causing core 1 to spike.

OK I will try that later.   Thank you.
 
Is there a way to get the load to spread against all 8 cores once I find the offending softsynth?

Depending on which OS you are running, it is worth trying disabling core parking.  Certainly worked on my Win 7 system. Here's one utility that will do it. 
 
https://bitsum.com/parkcontrol/

I'm having the same problem, even if I use core parking. I wish that someone from Cakewalk would respond to this problem. Core 1 is always 50% - 75% higher then the others. I see it the most with AD2 or  multiple FX Plugins. Win 8.1 and Win 10pro, ASIO drivers. Manchester, Computer set to High performance.