Number of Cores Setting

[Thomas Cantrell]

How many cores should I use? The cpu meter in Studio One went down when I changed SD3 to 2 cores (when I found the cores setting).

Are these logical cores or hardware cores?

I’m using a i7 7700k cpu.

How many cores does SD3 need? Where’s the sweet spot or how to find it?

Like I find latency by lowering it until it gags then raising it. Is there a procedure for finding out how many cores you need?

Any info appreciated

Thanks

Topic

[Olof Westman]

>Are these logical cores or hardware cores?

Neither, actually. It is the number of rendering threads that SD3 will run. It is up to the OS to assign them to cores.

> The cpu meter in Studio One went down when I changed SD3 to 2 cores

Yes, that would be expected. 2 cores is a good value. It will almost halve the time spent rendering. 4 cores will perhaps reduce the time spent to a third if the preset you are running is suitably complex. The more cores you are using the less effect you get from adding another one. Deminishing returns.

>How many cores does SD3 need? Where’s the sweet spot or how to find it?

Well, that would depend on your project and your hardware. As long as there are no rendering glitches no more cores are needed.

Generally when you start to get rendering glitches you raise the buffer size of the soundcard. This will increase the latency, which is a bad thing if you are tracking or playing live but not when you are mixing. You may instead choose to let SD3 use more cores but that only makes sense if it is SD3 that glitches. Your project may have a lot of tracks, effects and VSTi:s. If you let SD3 use more cores there will be less CPU power for the rest.

Olof Westman - Toontrack
Coder

1

Thanked by: marius.v.rus@gmail.com

[Thomas Cantrell]

Good Info!

I wasn’t having any problems with SD3 set to 1 core so 2 sounds like what I need to help performance.

Thanks

[Author]

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